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[[Category:EoM]]
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This project is based on an electronic version of the "Encyclopaedia
 
This project is based on an electronic version of the "Encyclopaedia
 
of Mathematics", published by Kluwer Academic Publishers until 2003,
 
of Mathematics", published by Kluwer Academic Publishers until 2003,
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Some help on this is given on the [[Help:Contents|help pages]].
 
Some help on this is given on the [[Help:Contents|help pages]].
  
The installed software and extensions for this project can be seen  
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The installed software and extensions for this project can be seen here:
[[Special:Version|here]]. This collection will be updated and extended.
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[[Special:Version]]. This collection may be updated and extended.
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 +
== Archives ==
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Discussions older than year 2020 have been moved to
 +
 
 +
[[Talk:EoM:This project/Archive 1]]
  
 
==Comments==
 
==Comments==
'''Please add comments and/or suggestions here:'''
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'''Please add comments and suggestions as a new section below.'''
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 +
== Problems with auto-encoding ==
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 +
The automatic encoding process seems to badly garble pages with cases: where one would expect a left lbrace without matching right rbrace.  Examples are [[Weibull distribution]] and [[Walsh system]] where there is corrupt TeX and text has gone missing.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 16:14, 6 June 2020 (UTC)
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: Yes, that's right: The markup sources the encoding is based upon are partially scrambled (exactly what you are saying, missing 'silent' right braces). However, this is a systematic error and will be fixed soon. As an example, I have just fixed the pages you mention above, but there are quite a few more, will come back to this soon.
 +
: Thanks for mentioning this, Richard. Let me know it you find more such systematic errors - I often can find+fix them easily by my bots. --[[User:Ulf Rehmann|Ulf Rehmann]] ([[User talk:Ulf Rehmann|talk]]) 17:59, 6 June 2020 (UTC)
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The automatic encoding seems to miss out Tex in references.  There are a lot of references to $K$-theory and $p$-adic numbers, for example.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 16:22, 6 June 2020 (UTC)
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: Yes, right as well: The markup sources generally do miss the $\TeX$ encoding for the references (I don't know why). This either has to be replaced by hand (or possibly by my old bot to enrich the references by MR/ZBL links, which would get the titles as encoded by MR and thereby replacing the png images by mathjax encoding - but I should find the time to adjust these bots to the new software situation). --[[User:Ulf Rehmann|Ulf Rehmann]] ([[User talk:Ulf Rehmann|talk]]) 17:59, 6 June 2020 (UTC)
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 +
There's also a problem with braces around sub- and superscripts.  I have seen examples, such as [[Space over an algebra]], of $x^{-1}$ being rendered as $x^{-}1$, $\sum_{j=1}$ as $\sum_{j=}1$ and so on.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 16:59, 7 June 2020 (UTC)
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 +
There's a stray word '''size''' in the commutative diagrams at [[Diagram]], [[Spectral homology]], [[Triple]].  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 18:36, 7 June 2020 (UTC)
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 +
A stray '''down 2''' in the subscripts at [[Modular curve]].  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 18:46, 14 June 2020 (UTC)
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 +
Translation of SL for special linear group should be mathrm not mathop, as the latter produces curious results for $SL_2$ in display mode.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 18:46, 14 June 2020 (UTC)
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It seems that when a text phrase in parentheses follows a formula, the space is in the wrong place, that is after the opening parenthesis rather than before, such as the third line of [[Stability of characteristic exponents]].  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 12:53, 20 June 2020 (UTC)
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The ellipsis $,\ldots,$ is often rendered as $\ldots$, that is, without the commas.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 16:37, 23 June 2020 (UTC)
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There are a few articles with a mysterious word ''riangle'' in formulae which don't seem to render properly.  I think it's some form of triangle.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 14:22, 31 December 2020 (UTC)
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: I've dealt with all of these, I think.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 11:59, 12 January 2021 (UTC)
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 +
In [[Kripke models]] there's an unrecognised symbol $\hul$ which appears to be something to do with a version of $\leftrightharpoons$.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 14:23, 31 December 2020 (UTC)
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 +
The encoding ''bold cdot'' occurs in several articles: I suspect $\bullet$ is intended.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 18:42, 2 January 2021 (UTC)
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 +
Mysterious ''Young'' and ''spd'' at [[Young diagram]].  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 21:47, 4 January 2021 (UTC)
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There are also stray occurrences of ''tilde'' in some places.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 18:22, 11 January 2021 (UTC)
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An issue with stray occurrences of words like this is that it's hard to search for them.  I can't find a way of searching for the word "tilde", say, that does not also return occurrences of the latex command with the preceding backslash.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 11:59, 12 January 2021 (UTC)
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 +
=== Semi-automatic encoding ===
 +
Please also let me know about any potential problems that occur for [[User:Maximilian_Janisch/latexlist/texified|articles]] that are texified with the "semi-automatic" method. --[[User:Maximilian Janisch|Maximilian Janisch]] ([[User talk:Maximilian Janisch|talk]]) 16:48, 1 July 2020 (UTC)
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:In the article [[Stochastic process, generalized]], the automatic texification made a few mistakes relating to parenthesized expressions in exponents: $  X ^ {(}n)  $ vs. $  X ^ {(n)} $. [[User:AxelBoldt|AxelBoldt]] ([[User talk:AxelBoldt|talk]]) 22:03, 7 November 2021 (UTC)
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:: This appears to be an issue with the automatic (not the semi-automatic) encoding, and I‘m afraid that it may have happened in other articles too 😅. —[[User:Maximilian Janisch|Maximilian Janisch]] ([[User talk:Maximilian Janisch|talk]]) 22:22, 7 November 2021 (UTC)
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:::Yes, this is another aspect of my comment dated 16:59, 7 June 2020 a few lines above.  It is unfortunately rather common.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 07:07, 8 November 2021 (UTC)
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 +
Just found this page, and this section seems to cover most of the problems that I've been correcting manually, see [[User talk:Maximilian Janisch|Maximilian's talk]]. Thanks! [[User:Liuyao|Liuyao]] ([[User talk:Liuyao|talk]]) 17:05, 20 January 2022 (UTC)
 +
 
 +
== Favicon ==
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This is a "beautification" section.
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 +
Has there ever been a discussion on the possibility of using a favicon for the website EoM? I believe it would be beneficial to the cementation of the website, as well improve its general appearance. --[[User:Redactedentity|Mihir Narayanan]] ([[User talk:Redactedentity|talk]]) 00:23, 10 December 2020 (UTC)
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:Yes, but to no avail yet: See [[Talk:EoM:This_project#A_completely_trivial_suggestion:_Should_we_provide_a_favicon_.28logo.29.3F_Any_proposals.3F|this]]. - [[User:Ulf Rehmann|Ulf Rehmann]] ([[User talk:Ulf Rehmann|talk]]) 05:18, 9 December 2020 (UTC)
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::I think I could make a favicon .ico file using an illusrtration software, with a design representing the phrase "E of M". Would you like me to do so? --[[User:Redactedentity|Mihir Narayanan]] ([[User talk:Redactedentity|talk]]) 00:23, 10 December 2020 (UTC)
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::: I have added this to my list of [https://encyclopediaofmath.org/index.php?title=User:Maximilian_Janisch/issues&diff=51730&oldid=51685 things to do]. --[[User:Maximilian Janisch|Maximilian Janisch]] ([[User talk:Maximilian Janisch|talk]]) 09:15, 25 June 2021 (UTC)
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 +
== Mathematical X vs X, mathematical ==
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 +
We have articles [[Mathematical ecology]], [[Mathematical economics]], [[Mathematical linguistics]], [[Mathematical morphology]], [[Mathematical physics]], [[Mathematical programming]], [[Mathematical statistics]] on the one hand, and [[Abstraction, mathematical]], [[Crystallography, mathematical]], [[Model, mathematical]] on the other.  I would suggest a common style of "Mathematical X", which is the majority, moving the minority.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 17:48, 16 January 2021 (UTC)
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 +
A similar comment applies to [[Algebra, fundamental theorem of]] versus [[Fundamental theorem of calculus]].  The latter incidentally rather oddly redirects to [[Newton-Leibniz formula]] where the Fundamental Theorem is mentioned in a rather odd way.  I would suggest a move of the former to [[Fundamental theorem of algebra]].  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 19:59, 16 January 2021 (UTC)
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 +
== Way forward? ==
 +
 
 +
What are the next steps for the project?  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 16:24, 6 September 2021 (UTC)
 +
: Hi Richard, I will note that there is a small list of things that might be worth a look at [[User:Maximilian_Janisch/issues|here]]. On another note, I was busy this year with writing my master's thesis (I will presumably obtain my master's at the end of this September), so I haven't kept track of the EoM much. I hope that I'll be able to be more active again in the future, Maximilian --[[User:Maximilian Janisch|Maximilian Janisch]] ([[User talk:Maximilian Janisch|talk]]) 15:20, 7 September 2021 (UTC)
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 +
While acknowledging the sterling work of the few people who have been contributing over the past couple of years, I wonder whether it is time to agree that the project has come to a natural conclusion?  To revive it means building up a community with a number of contributors, and, just as importantly, setting a direction for the many topics that are under- or even un-represented.  If there's any interest for getting that editorial work done, possibly via some sort of meeting or workshop, I would be willing to help promote it.  I believe funds might be available.  [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 13:45, 18 January 2023 (UTC)
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 +
: I see that a lot of old posting have been archived.  There are some questions of mine in that tranche that are still formally active, in the sense that they have never been answered, but they required either direction from members of the editorial board or a vigorous debate among the working editors, and I'm sorry to say that neither of those ever happened.  That's one of the reasons why I'm rather pessimistic about the future of this project.  I first raised this question a couple of years ago, and there has been no real answer. 
 +
 
 +
: It seems to me there are three possible routes. 
 +
:: 1. Acknowledge that the project represents a view of mathematics at a certain set of points in time, and close it off with a minimal amount of tidying up. 
 +
:: 2. Acknowledge that Wikipedia has, for better or worse, occupied the space the project might have occupied, and seek to merge it into Wikipedia.  This would require a medium amount of effort, but there are many volunteers there.
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:: 3. Try to bring the project up to date.  This would require a lot of effort, and that has to be either paid for or someone has to think of a reason why volunteers would take part (rather than on Wikipedia, say).  Indeed, simply scoping out the gaps that have opened up in the past decades and drawing up a list of necessary new articles would in itself be a major project requiring effort from a group of people at a quite high level: one thinks of a conference or workshp convened by the editorial board members and others, for example.  That's before anyone tries to find the resources for writing those missing articles.  Perhaps the EMS might take it on as a major project.  It's very far beyond what can be crowd-sourced by a handful of volunteers, however well-meaning and active.
 +
 
 +
: But someone has to decide to take action, make a case and coordinate effort.  Without that initiative, the project is by default choosing option (1), to close itself down more or less gracefully.
 +
[[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 16:32, 15 October 2023 (UTC)
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== Get rid of Springer logo ? ==
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Maybe one should now get rid of the prominent Springer logo, but keep only some sentence somewhere about the history ?
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And also we should get rid of the cookies. Who needs cookies here ?
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[[User:Chapoton|Chapoton]] ([[User talk:Chapoton|talk]]) 20:26, 15 March 2023 (UTC)
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:Cookies warnings are still there, despite some claims to the contrary. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:50, 12 October 2023 (UTC)
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== MSC template link is broken ✅ ==
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The first link in the MSC template is currently broken. See for example on top of [[Arithmetic number]]. It should probably be removed, keeping only the MathSciNet and ZentralBlatt links.
 +
 
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I would like to add an OEIS template linking to https://oeis.org/ (done ✅)
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[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:29, 16 March 2023 (UTC)
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 +
:And for course, it should be MSC2020, not MSC2010. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 08:33, 17 March 2023 (UTC) ✅
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 +
::And the MSN and ZBL templates themselves are sometimes called with several codes, which leads nowhere. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 13:37, 17 March 2023 (UTC)
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:::And the broken MSC link now points to a borked website, with spam. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 16:51, 13 August 2023 (UTC)
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 +
: The MSN templates have been fixed now. Please report any issues. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:51, 12 October 2023 (UTC)
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== "How to cite" link should use https ==
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At the bottom of every page, it still uses "http".
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[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:29, 16 March 2023 (UTC)
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I have no idea where this is configured. This does not seem to be a template. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:48, 29 March 2023 (UTC)
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:For a random example, see [[Jet]]. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 10:19, 12 October 2023 (UTC)
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== Zbl is now free ✅ ==
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So we should change the little padlock icon besides the ZBL link in the ZBL template.
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[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 10:03, 16 March 2023 (UTC)
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:Unless the padlock icon means an exterior link ? [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 14:30, 17 March 2023 (UTC)
  
This is a useful page, but it should be more visible. Maybe the navigation toolbar should contain it (among "main page", ..., "help"). --[[User:Boris Tsirelson|Boris Tsirelson]] 08:14, 14 December 2011 (CET)
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I see that the padlock is for https links, so nothing to change after all. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 07:35, 28 March 2023 (UTC)
:I have added a link to this page on the [[Help:Contents]] page. [[User:Nbrothers|Nathan Brothers]] 17:28, 16 December 2011 (EST)
 
  
<hr />
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== The DOI template should use https ✅ ==
  
The footer "How to Cite this Entry" is appropriate for articles, but probably not for user pages etc. --[[User:Boris Tsirelson|Boris Tsirelson]] 15:05, 14 December 2011 (CET)
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Because this is now the standard way to go.
  
:I have transmitted your proposals to the admins. [[User:Rehmann|Ulf Rehmann]] 22:44, 14 December 2011 (CET)  
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[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 08:13, 17 March 2023 (UTC)
  
<hr />
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: Done, fixed. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:46, 12 October 2023 (UTC)
  
I rewrote [[Measurable space]]; please look. In particular, in the bibliography I gave links to MathSciNet (following a suggestion by Ulf Rehmann); but for now they use my private template [[User:Boris Tsirelson/MR]]; if you like it, please move it into [[Template:MR]] (with needed changes, if any). --[[User:Boris Tsirelson|Boris Tsirelson]] 21:43, 20 December 2011 (CET)
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== Get rid of empty comment sections ==
: Ok, I have made MR a global template and have added a ZBL template as well, see  [[Measurable space]]. --[[User:Rehmann|Ulf Rehmann]] 22:53, 21 December 2011 (CET) Same for [[Tamagawa number]] --[[User:Rehmann|Ulf Rehmann]] 00:38, 23 December 2011 (CET)
 
  
:: Good news: even working with no subscriptions, clicking a Zbl link I still get a review, in contrast to an MR link <small>(MR says: "For users without a MathSciNet license, Relay Station allows linking from MR numbers in online mathematical literature directly to electronic journals and original articles. Subscribers receive the added value of full MathSciNet reviews.)"</small>.
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How can one find the list of articles containing an empty comment section ? How to get rid of them in some automatic way ?
:::That corresponds to Zbl's policy: They do allow up to three requests even to non subscribers. --[[User:Rehmann|Ulf Rehmann]] 10:40, 23 December 2011 (CET)
 
:: Bad news: even working with an MSC subscription (via my university), clicking a Subject Classification link I get:
 
:::A username and password are being requested by <nowiki>http://ams.math.uni-bielefeld.de</nowiki>. The site says: "MathSciNet Authentication".
 
:: --[[User:Boris Tsirelson|Boris Tsirelson]] 10:13, 23 December 2011 (CET)
 
:::That is different here: Under a vpn connection I do get access -- even from my home notebook, and I can switch on and off that access by using or not using vpn (as it should happen). But: after switching on, I have to reload the EoM page before my browser realizes that access is given.--[[User:Rehmann|Ulf Rehmann]] 10:40, 23 December 2011 (CET)
 
:: And still, the MSC template is not good for primary-only cases, because the "ParserFunctions" extension is missing. --[[User:Boris Tsirelson|Boris Tsirelson]] 10:21, 23 December 2011 (CET)
 
:::Unfortunately that is true. An updated software version which should fix this hopefully will be installed in early January. --[[User:Rehmann|Ulf Rehmann]] 18:44, 23 December 2011 (CET)
 
:::Here is an MSC template which works correctly, but without #if clause: [[User:Rehmann/sandbox/MSC]] --[[User:Rehmann|Ulf Rehmann]] 00:33, 7 January 2012 (CET)
 
::::Wow! --[[User:Boris Tsirelson|Boris Tsirelson]] 08:16, 7 January 2012 (CET)
 
:::MSCwiki links added to help non MSN supported readers (not perfect for secondary MSC)--[[User:Rehmann|Ulf Rehmann]] 14:10, 7 January 2012 (CET)
 
===Our readers===
 
It seems, most of EoM articles are targeted at graduate math students and professional mathematicians; but some are accessible to an interested layman. I try to collect these; for now, starting on "A", "B". --[[User:Boris Tsirelson|Boris Tsirelson]] 10:36, 14 December 2011 (CET)
 
  
------------------
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Where can I find documentation on the API for the encyclopedia ?
[[Absolute value]]
 
+ [[Additivity]]
 
+ [[Algebra]]
 
+ [[Algebra, fundamental theorem of]]
 
+ [[Algebra of sets]]
 
+ [[Analytic geometry]]
 
+ [[Arabic numerals]]
 
+ [[Arithmetic mean]]
 
+ [[Arithmetic root]]
 
+ [[Assertion]]
 
+ [[Associativity]]
 
+ [[Axiomatic method]]
 
  
[[Ball]]
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[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 13:06, 17 March 2023 (UTC)
+ [[Bayes formula]]
 
+ [[Bell inequalities]]
 
+ [[Benford law]]
 
+ [[Bernoulli experiment]]
 
+ [[Bernoulli random walk]]
 
+ [[Bertrand paradox]]
 
+ [[Binary tree]]
 
+ [[Binomial distribution]]
 
+ [[Bit]]
 
----------------------------
 
  
Should we introduce (two or more) levels, and mark articles accordingly? --[[User:Boris Tsirelson|Boris Tsirelson]] 11:17, 15 December 2011 (CET)
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== ISBN template ==
  
:I am not sure. Maybe it is good to just have a list (category) of articles which are suited for non professionals, in order to attract such readers. --[[User:Rehmann|Ulf Rehmann]] 13:21, 15 December 2011 (CET)
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We may like to have an IBSN template, as this appears in some references. But what should it link to ?
  
===Preferred style===
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[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 14:29, 17 March 2023 (UTC)
Many articles have (near the end) the section "Comments" (and often
 
also the second "References" section after "Comments"). What does it
 
mean? And should we follow this pattern when editing and creating
 
articles? --[[User:Boris Tsirelson|Boris Tsirelson]] 11:22, 15 December
 
2011 (CET)
 
  
:This is due to the history of the encylopaedia. It underwent various (print and electronic) editions, which not always resulted in a rewrite of an article, but just in an update by amending a comment (sometimes there are several, each with its own reference list). There is no need to follow this pattern now since wikipedia does allow better ways of updating.--[[User:Rehmann|Ulf Rehmann]] 13:21, 15 December 2011 (CET)
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:We could link to wikipedia tool for ISBN, namely "https://en.wikipedia.org/wiki/Special:BookSources/". [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:05, 19 March 2023 (UTC)
----------------------
 
I guess, some day the use of our new templates will become a part of recommendations posted on our help pages. Here is another question of style.
 
  
I observe a typical pattern in the existing articles: the title, mentioning a notion, is immediately continued by the definition of the notion. Sometimes a slanted text in between gives some context or some synonims.  
+
::The [[Template:ISBN|ISBN template]] doesn't currently exist, so using it means that the ISBN is no longer visible.  At present, then, trying to use it is a step backwards. [[User:Richard Pinch|Richard Pinch]] ([[User talk:Richard Pinch|talk]]) 08:34, 28 August 2023 (UTC)
  
:I propose to use a definition style using a complete sentence with predicate consisting of copula+predicative, as this is common in (written) English. Synonyms could be given, maybe after a prefix "also:" and with an extra page for that synonym referencing to the actual page.Context extensions of some notion should be given within the text, if there is no need to distinguish against other uses of that notion, in which case a disambiguation page should be used. See below my suggestions.--[[User:Rehmann|Ulf Rehmann]] 19:43, 23 December 2011 (CET)
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: Hopefully, it will exists very soon. I am waiting for somebody to come back from holidays and give me the rights to create templates. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 08:39, 28 August 2023 (UTC)
  
Examples:
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The ISBN template has now been filled in a minimal way, just displaying the data. If we like, we can make it a link to something. Any preference or opinion ? [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:43, 12 October 2023 (UTC)
  
:'''Binary relation'''
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We could also link to the page https://www.wikidata.org/wiki/Special:BookSources/978-2-26-702700-6 . [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 19:46, 27 October 2023 (UTC)
  
:<nowiki>A two-place [[Predicate|predicate]] on a given set.</nowiki>
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:One should now proceed with au automated search-and-remplace to apply the ISBN template in all possible places. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 08:12, 4 November 2023 (UTC)
  
::''Preferable:'' <nowiki>A binary relation is a two-place [[Predicate|predicate]] on a given set.</nowiki>--[[User:Rehmann|Ulf Rehmann]] 19:43, 23 December 2011 (CET)
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== Uploading images ==
  
:'''Spectral density'''
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When uploading images, one has no choice for the licence. This should be fixed. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 15:51, 17 March 2023 (UTC)
  
:''of a stationary stochastic process or of a homogeneous random field in n-dimensional space''
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And I do not mean that there is only one choice. The list to choose among is **'''empty'''**. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 13:41, 1 May 2023 (UTC)
  
:<nowiki>The [[Fourier transform|Fourier transform]] of the covariance function
+
== convert html letters to unicode ==
of a stochastic process which is stationary in the wide sense</nowiki>...
 
  
::''Preferable:'' In this article, the spectral density of a stationary stochastic process or of a homogeneous random field in n-dimensional space is described.--[[User:Rehmann|Ulf Rehmann]] 19:43, 23 December 2011 (CET)
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We should perform a mass replacement of things like "&amp;uuml;" bu "ü" and "&amp;egrave;" by "è", etc.
  
:'''Inter-quantile width'''
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Also we should format the references tables for human source-code reading.
  
:''inter-quantile distance, inter-quantile range''
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[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:03, 19 March 2023 (UTC)
  
::''Preferable:'' Also:  ''inter-quantile distance, inter-quantile range'' --[[User:Rehmann|Ulf Rehmann]] 19:43, 23 December 2011 (CET)
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:and maybe more importantly, the same for converting &amp;gt; to ">" in latex code. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:03, 10 November 2023 (UTC)
  
:<nowiki>The difference between the lower and upper quantiles of the same level (cf. [[Quantile|Quantile]]).</nowiki>
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== allow STL files for 3D surface plots ==
  
But in rare cases the definition appears much later (as in [[Berwald connection]]).
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As this would be very convenient, for example to illustrate [[Enneper surface]].
  
::Maybe here a link to the text part giving the formal definition could be placed under the title.--[[User:Rehmann|Ulf Rehmann]] 19:43, 23 December 2011 (CET)
+
This is possible and used on wikipedia.
  
On Wikipedia the pattern of the beginning is different: the title is not a part of the definition; an example:
+
[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 18:18, 28 March 2023 (UTC)
  
:'''Binary relation'''
+
:This would also be useful for [[Parallelohedron]]. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 19:26, 5 October 2023 (UTC)
  
:<nowiki>In [[mathematics]], a '''binary relation on''' a [[set (mathematics)|set]] ''A'' is a collection of [[ordered pair]]s of elements of ''A''.</nowiki>
+
== mediawiki update please ==
  
Thus, what is our preferred style for the start of an article? --[[User:Boris Tsirelson|Boris Tsirelson]] 17:28, 23 December 2011 (CET)
+
We should upgrade the version of mediawiki. In particular, to benefit of better math fonts in the svg files.
  
::Since our language is English, we should use full sentences for definitions, as said above.--[[User:Rehmann|Ulf Rehmann]] 19:43, 23 December 2011 (CET)
+
[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 13:35, 1 May 2023 (UTC)
  
===Subject classification===
+
:And now it seems that we have lost the possibility to "search-and-replace" when editing pages. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 13:07, 23 February 2024 (UTC)
What I find more important is to classify articles by [http://www.ams.org/mathscinet/msc/conv.html?from=2010 MSC (Mathematical Subject Classification)] and possibly categorize them according to that. This classification should be done so that it is easily recognizable by bots collecting bibliographic info. Of course MSC is subject to change over time, and there should be a tool to update such a classification easily over the whole collection. (We are lucky, since such a change did just happen via MSC 2000 --> MSC 2010.) Does anybody know if there exist wikimedia extensions which do support a suitable classification (and possibly its update)?--[[User:Rehmann|Ulf Rehmann]] 13:21, 15 December 2011 (CET)
 
  
:For now I added MSC codes to our [[Special:Categories|categories]]. It will be much easier to update categories than all articles. About bots collecting bibliographic info, I have no idea. But probably a template can help. Do you know which text should appear on articles to this end? [[User:Boris Tsirelson|Boris Tsirelson]] 20:51, 15 December 2011 (CET)
+
== OldImage template created ==
  
::Some html meta tag would do the job like
+
I have made a minimal <nowiki>{{OldImage}}</nowiki> template, that could be enhanced.
::::<meta name="description" content="2010 Mathematics Subject Classifiction 20-XXX" />  
 
::and
 
::::<meta name="keywords" content="associative algebras, Galois theory, ..." />.
 
::But I think that ought to be done on a pagewise basis. --[[User:Rehmann|Ulf Rehmann]] 12:47, 17 December 2011 (CET)
 
  
:::As an experiment, I added "&lt;nowiki><meta name="keywords" content="probability" />&lt;/nowiki>" to the end of "[[Probability]]"; it is invisible, but appears on the generated html as "&lt;p>&lt;span class="tex2jax_ignore">&lt;nowiki>&lt;meta name="keywords" content="probability" />&lt;/nowiki>&lt;/span>&lt;/p>". Will it do the job? --[[User:Boris Tsirelson|Boris Tsirelson]] 16:39, 17 December 2011 (CET)
+
See [[:Template:OldImage]] and pages linked to the template.
::::It seems one cannot put some <meta> tag outside the <body> section of some wiki page  (unless there is some wikimedia extension wich helps??). So maybe you just omit the <meta ... /> tag. But apparently at the time being, Google's bots don't visit the EoM pages at all.--[[User:Rehmann|Ulf Rehmann]] 19:33, 25 December 2011 (CET)
 
  
:::::Not quite so. I just took an old article (not "Measurable space", this is too recent), asked Google for "interest in abstract differential equations is that the so-called mixed problems" and got the first answer: "Differential equation, abstract - Encyclopedia of Mathematics". --[[User:Boris Tsirelson|Boris Tsirelson]] 21:13, 25 December 2011 (CET)
+
[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 10:12, 12 October 2023 (UTC)
::::::Too slow. On [http://www.math.uni-bielefeld.de/lag my preprint server], articles are recognized by google within a few days.--[[User:Rehmann|Ulf Rehmann]] 21:49, 25 December 2011 (CET)
 
:::::::It is rumored that Google, seeing a new page, returns to it after some days; if it is changed, Google treats it as volatile, and visits frequently; otherwise it does not. But anyway, (a) I doubt we can hope for a high Google rank, and (b) I doubt we can have many visitors. Just because mathematicians are a small population. Students are a larger population, but these are not our readers, I guess. --[[User:Boris Tsirelson|Boris Tsirelson]] 23:04, 25 December 2011 (CET)
 
::::::::But (a),(b) are true for my preprint server as well... --[[User:Rehmann|Ulf Rehmann]] 23:35, 25 December 2011 (CET)
 
===Categories===
 
Concerning categorization I propose to use the sectioning scheme used by the International Congresses of Mathematicians as shown below (I have added the respective two digit MSC codes - please amend/correct):
 
  
{| cellspacing="0" style="margin: 1em auto 1em auto;"
+
== Allowed outer links ==
! colspan="2" | ICM sectioning scheme, cf. [http://www.icm2010.in/scientific-program/imu-sections ICM 2010]
 
! scope="col" | Corresponding [http://msc2010.org/mscwiki/index.php?title=MSC2010 MSC 2010 two digit codes]
 
|-
 
| 1.|| [[:Category:Logic and foundations]] ||                                                {{C|03}}
 
|-
 
| 2. || [[:Category:Algebra]] ||                                              {{C|06}},{{C|08}},{{C|12}},{{C|13}},{{C|15}},{{C|16}},{{C|17}},{{C|18}},{{C|19}},{{C|20}}
 
|-
 
| 3. || [[:Category:Number theory]] ||      {{C|11}}
 
|-
 
| 4. || [[:Category:Algebraic and complex geometry]] ||                                  {{C|14}}
 
|-
 
| 5. || [[:Category:Geometry]] ||                                  {{C|51}},{{C|52}}
 
|-
 
| 6. || [[:Category:Topology]] ||                                  {{C|54}},{{C|55}},{{C|57}}
 
|-
 
| 7. || [[:Category:Lie theory and generalizations]] ||                          {{C|22}}
 
|-
 
| 8. || [[:Category:Analysis]] ||                                            {{C|26}},{{C|28}},{{C|30}},{{C|31}},{{C|32}},{{C|33}},{{C|40}},{{C|41}},{{C|42}},{{C|43}},{{C|44}}
 
|-
 
| 9. || [[:Category:Functional analysis and applications]] || {{C|46}},{{C|47}},{{C|48}}
 
|-
 
| 10. || [[:Category:Dynamical systems and ordinary differential equations]] || {{C|34}},{{C|37}} ({{C|39}})
 
|-
 
|11. || [[:Category:Partial differential equations]] ||                      {{C|35}},{{C|37}}
 
|-
 
|12. || [[:Category:Mathematical physics]] ||                                {{C|70}},{{C|74}},{{C|76}},{{C|78}},{{C|80}},{{C|82}},{{C|83}},{{C|85}}
 
|-
 
|13. || [[:Category:Probability and statistics]] ||                          {{C|60}},{{C|62}}
 
|-
 
|14. || [[:Category:Combinatorics]] ||                                        {{C|05}}
 
|-
 
|15. || [[:Category:Mathematical aspects of computer science]] ||            {{C|68}}
 
|-
 
|16. || [[:Category:Numerical analysis and scientific computing]] ||          {{C|65}},{{C|68}}
 
|-
 
|17. || [[:Category:Control theory and optimization]] ||                      {{C|49}},{{C|93}}
 
|-
 
|18. || [[:Category:Mathematics in science and technology]] ||                {{C|81}},{{C|86}},{{C|90}},{{C|91}},{{C|92}},{{C|94}}
 
|-
 
|19. || [[:Category:Mathematics education and popularization of mathematics]] ||          {{C|00}},{{C|97}}
 
|-
 
|20. || [[:Category:History of mathematics]] ||                              {{C|01}}
 
|}
 
  
::[[User:Rehmann/sandbox/MSC_test | List of preliminary MR, Zbl, and MSC templates.]] --[[User:Rehmann|Ulf Rehmann]] 23:30, 12 January 2012 (CET)
+
Maybe somebody should refresh the list of allowed external links. My recent changes to templates seem to trigger the captchas when editing every single page. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 11:45, 12 October 2023 (UTC)
  
::The tableau (or some variants) has been used by IMU for the recent ICM section setup, see [http://www.icm2010.in/scientific-program/imu-sections ICM 2010]. (Cf. also: [http://www.icm2010.in/scientific-program/programme-structure more verbal], [http://www.icm2006.org/scientificprogram/scientificsections/ ICM 2006], [http://elib.zib.de/ICM98/B/3/ ICM 1998] --[[User:Rehmann|Ulf Rehmann]] 13:21, 15 December 2011 (CET), modified: 19:33, 25 December 2011 (CET)
+
: In particular, please allow the external links to OEIS, as in the OEIS template. [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 07:28, 7 November 2023 (UTC)
  
::: A good idea; I shall do. --[[User:Boris Tsirelson|Boris Tsirelson]] 15:54, 17 December 2011 (CET)
+
::and the same for the DOI template, please ! [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 09:27, 10 November 2023 (UTC)
  
::: I've made a template [[User:Boris Tsirelson/MSC|here]] and used it in [[Tamagawa number]]. It would be better to use the template "<nowiki>[ 2010 Mathematics Subject Classification {{{1}}}{{#if:{{{2|}}}|,({{{2}}})|}} ]</nowiki>", since the call <nowiki>{{MSC|11F70}}</nowiki> should not generate "11F70,()". ''Unfortunately, the "ParserFunctions" extension is still missing.''
+
:Even the MR link is problematic, so please take action! [[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 08:28, 23 November 2023 (UTC)
  
::: An "MSC" template is worth using, since (1) changing it one can change the appearance of all MSC at once, and (2) in 2020  :-)  one can instruct the template to replace some codes with new ones. --[[User:Boris Tsirelson|Boris Tsirelson]] 16:57, 18 December 2011 (CET)
+
== using a better search engine ==
::: --[[User:Boris Tsirelson|Boris Tsirelson]]
 
::I have set up some algebra (etc.) subcategories with some new template [[User:Rehmann/sandbox/MSCtop‎]]. (Eventually all the MSC templates should be combined as soon as we will have the ParserFunctions extensions or so.) --[[User:Rehmann|Ulf Rehmann]] 23:29, 7 January 2012 (CET)
 
::We need an msc macro which automatically produces not only the entry+link for the primary/secondary number, but also inserts the respective [[Category:<blah>]] line entries to categorize the pages. But this requires (at least)  the ParserFunctions extensions, maybe more.--[[User:Rehmann|Ulf Rehmann]] 00:35, 8 January 2012 (CET)
 
:::The existing MSC template does not work correctly for such cases as {{User:Rehmann/sandbox/MSC|60-01|}}. --[[User:Boris Tsirelson|Boris Tsirelson]] 13:09, 12 January 2012 (CET)
 
::::Yes, I know. That cannot be resolved without "#if"-clause, so I drafted another template [[User:Rehmann/sandbox/MSC-X]] for this special purpose (middle entry an hyphen '-') (and nagged the sysadmins again for installing #if). --[[User:Rehmann|Ulf Rehmann]] 16:44, 12 January 2012 (CET)
 
::::Here is a list of all the (preliminary) [[User:Rehmann/sandbox/MSC_test | MR. ZBL, and MSC templates]]. --[[User:Rehmann|Ulf Rehmann]] 23:26, 12 January 2012 (CET)
 
  
:ParserFunctions works! Wow! --[[User:Boris Tsirelson|Boris Tsirelson]] 09:43, 19 January 2012 (CET)
+
Maybe we could install the ''CirrusSearch'' extension ? It offers better search capabilities and in particular case-sensitive search.
::Yes, that's good. It also offers some [http://www.mediawiki.org/wiki/Extension:StringFunctions nice string handling functions]. For further new extensions, see [[Special:version| Special:version]].--[[User:Rehmann|Ulf Rehmann]] 11:07, 19 January 2012 (CET)
 
  
===References===
+
https://www.mediawiki.org/wiki/Extension:CirrusSearch
  
Now, having ParserFunctions, we can choose a style for refs (and support it by templates).
+
[[User:Chapoton|F. Chapoton]] ([[User talk:Chapoton|talk]]) 08:55, 23 November 2023 (UTC)
(to be continued)
 
--[[User:Boris Tsirelson|Boris Tsirelson]] 12:38, 19 January 2012 (CET)
 

Latest revision as of 13:07, 23 February 2024


This project is based on an electronic version of the "Encyclopaedia of Mathematics", published by Kluwer Academic Publishers until 2003, and by Springer after that. The encyclopaedia goes back to the Soviet Matematicheskaya entsiklopediya (1977), originally edited by Ivan Matveevich Vinogradov.

The electronic version had its formulae written in $\rm \TeX$, which were saved as png images. On its way through the various publishers the original $\rm \TeX$ source code was lost, therefore, to edit a formula in one of these original pages requires to retype the code for that formula from scratch.

For the project, it will be of big help to transcribe the old pages. To make this easy, it was decided to use MathJax, which allows to use Plain $\rm \TeX$ or $\rm \LaTeX$ for formulae encoding.

Some help on this is given on the help pages.

The installed software and extensions for this project can be seen here: Special:Version. This collection may be updated and extended.

Archives

Discussions older than year 2020 have been moved to

Talk:EoM:This project/Archive 1

Comments

Please add comments and suggestions as a new section below.

Problems with auto-encoding

The automatic encoding process seems to badly garble pages with cases: where one would expect a left lbrace without matching right rbrace. Examples are Weibull distribution and Walsh system where there is corrupt TeX and text has gone missing. Richard Pinch (talk) 16:14, 6 June 2020 (UTC)

Yes, that's right: The markup sources the encoding is based upon are partially scrambled (exactly what you are saying, missing 'silent' right braces). However, this is a systematic error and will be fixed soon. As an example, I have just fixed the pages you mention above, but there are quite a few more, will come back to this soon.
Thanks for mentioning this, Richard. Let me know it you find more such systematic errors - I often can find+fix them easily by my bots. --Ulf Rehmann (talk) 17:59, 6 June 2020 (UTC)

The automatic encoding seems to miss out Tex in references. There are a lot of references to $K$-theory and $p$-adic numbers, for example. Richard Pinch (talk) 16:22, 6 June 2020 (UTC)

Yes, right as well: The markup sources generally do miss the $\TeX$ encoding for the references (I don't know why). This either has to be replaced by hand (or possibly by my old bot to enrich the references by MR/ZBL links, which would get the titles as encoded by MR and thereby replacing the png images by mathjax encoding - but I should find the time to adjust these bots to the new software situation). --Ulf Rehmann (talk) 17:59, 6 June 2020 (UTC)

There's also a problem with braces around sub- and superscripts. I have seen examples, such as Space over an algebra, of $x^{-1}$ being rendered as $x^{-}1$, $\sum_{j=1}$ as $\sum_{j=}1$ and so on. Richard Pinch (talk) 16:59, 7 June 2020 (UTC)

There's a stray word size in the commutative diagrams at Diagram, Spectral homology, Triple. Richard Pinch (talk) 18:36, 7 June 2020 (UTC)

A stray down 2 in the subscripts at Modular curve. Richard Pinch (talk) 18:46, 14 June 2020 (UTC)

Translation of SL for special linear group should be mathrm not mathop, as the latter produces curious results for $SL_2$ in display mode. Richard Pinch (talk) 18:46, 14 June 2020 (UTC)

It seems that when a text phrase in parentheses follows a formula, the space is in the wrong place, that is after the opening parenthesis rather than before, such as the third line of Stability of characteristic exponents. Richard Pinch (talk) 12:53, 20 June 2020 (UTC)

The ellipsis $,\ldots,$ is often rendered as $\ldots$, that is, without the commas. Richard Pinch (talk) 16:37, 23 June 2020 (UTC)

There are a few articles with a mysterious word riangle in formulae which don't seem to render properly. I think it's some form of triangle. Richard Pinch (talk) 14:22, 31 December 2020 (UTC)

I've dealt with all of these, I think. Richard Pinch (talk) 11:59, 12 January 2021 (UTC)

In Kripke models there's an unrecognised symbol $\hul$ which appears to be something to do with a version of $\leftrightharpoons$. Richard Pinch (talk) 14:23, 31 December 2020 (UTC)

The encoding bold cdot occurs in several articles: I suspect $\bullet$ is intended. Richard Pinch (talk) 18:42, 2 January 2021 (UTC)

Mysterious Young and spd at Young diagram. Richard Pinch (talk) 21:47, 4 January 2021 (UTC)

There are also stray occurrences of tilde in some places. Richard Pinch (talk) 18:22, 11 January 2021 (UTC)

An issue with stray occurrences of words like this is that it's hard to search for them. I can't find a way of searching for the word "tilde", say, that does not also return occurrences of the latex command with the preceding backslash. Richard Pinch (talk) 11:59, 12 January 2021 (UTC)

Semi-automatic encoding

Please also let me know about any potential problems that occur for articles that are texified with the "semi-automatic" method. --Maximilian Janisch (talk) 16:48, 1 July 2020 (UTC)

In the article Stochastic process, generalized, the automatic texification made a few mistakes relating to parenthesized expressions in exponents: $ X ^ {(}n) $ vs. $ X ^ {(n)} $. AxelBoldt (talk) 22:03, 7 November 2021 (UTC)
This appears to be an issue with the automatic (not the semi-automatic) encoding, and I‘m afraid that it may have happened in other articles too 😅. —Maximilian Janisch (talk) 22:22, 7 November 2021 (UTC)
Yes, this is another aspect of my comment dated 16:59, 7 June 2020 a few lines above. It is unfortunately rather common. Richard Pinch (talk) 07:07, 8 November 2021 (UTC)

Just found this page, and this section seems to cover most of the problems that I've been correcting manually, see Maximilian's talk. Thanks! Liuyao (talk) 17:05, 20 January 2022 (UTC)

Favicon

This is a "beautification" section.

Has there ever been a discussion on the possibility of using a favicon for the website EoM? I believe it would be beneficial to the cementation of the website, as well improve its general appearance. --Mihir Narayanan (talk) 00:23, 10 December 2020 (UTC)

Yes, but to no avail yet: See this. - Ulf Rehmann (talk) 05:18, 9 December 2020 (UTC)
I think I could make a favicon .ico file using an illusrtration software, with a design representing the phrase "E of M". Would you like me to do so? --Mihir Narayanan (talk) 00:23, 10 December 2020 (UTC)
I have added this to my list of things to do. --Maximilian Janisch (talk) 09:15, 25 June 2021 (UTC)

Mathematical X vs X, mathematical

We have articles Mathematical ecology, Mathematical economics, Mathematical linguistics, Mathematical morphology, Mathematical physics, Mathematical programming, Mathematical statistics on the one hand, and Abstraction, mathematical, Crystallography, mathematical, Model, mathematical on the other. I would suggest a common style of "Mathematical X", which is the majority, moving the minority. Richard Pinch (talk) 17:48, 16 January 2021 (UTC)

A similar comment applies to Algebra, fundamental theorem of versus Fundamental theorem of calculus. The latter incidentally rather oddly redirects to Newton-Leibniz formula where the Fundamental Theorem is mentioned in a rather odd way. I would suggest a move of the former to Fundamental theorem of algebra. Richard Pinch (talk) 19:59, 16 January 2021 (UTC)

Way forward?

What are the next steps for the project? Richard Pinch (talk) 16:24, 6 September 2021 (UTC)

Hi Richard, I will note that there is a small list of things that might be worth a look at here. On another note, I was busy this year with writing my master's thesis (I will presumably obtain my master's at the end of this September), so I haven't kept track of the EoM much. I hope that I'll be able to be more active again in the future, Maximilian --Maximilian Janisch (talk) 15:20, 7 September 2021 (UTC)

While acknowledging the sterling work of the few people who have been contributing over the past couple of years, I wonder whether it is time to agree that the project has come to a natural conclusion? To revive it means building up a community with a number of contributors, and, just as importantly, setting a direction for the many topics that are under- or even un-represented. If there's any interest for getting that editorial work done, possibly via some sort of meeting or workshop, I would be willing to help promote it. I believe funds might be available. Richard Pinch (talk) 13:45, 18 January 2023 (UTC)

I see that a lot of old posting have been archived. There are some questions of mine in that tranche that are still formally active, in the sense that they have never been answered, but they required either direction from members of the editorial board or a vigorous debate among the working editors, and I'm sorry to say that neither of those ever happened. That's one of the reasons why I'm rather pessimistic about the future of this project. I first raised this question a couple of years ago, and there has been no real answer.
It seems to me there are three possible routes.
1. Acknowledge that the project represents a view of mathematics at a certain set of points in time, and close it off with a minimal amount of tidying up.
2. Acknowledge that Wikipedia has, for better or worse, occupied the space the project might have occupied, and seek to merge it into Wikipedia. This would require a medium amount of effort, but there are many volunteers there.
3. Try to bring the project up to date. This would require a lot of effort, and that has to be either paid for or someone has to think of a reason why volunteers would take part (rather than on Wikipedia, say). Indeed, simply scoping out the gaps that have opened up in the past decades and drawing up a list of necessary new articles would in itself be a major project requiring effort from a group of people at a quite high level: one thinks of a conference or workshp convened by the editorial board members and others, for example. That's before anyone tries to find the resources for writing those missing articles. Perhaps the EMS might take it on as a major project. It's very far beyond what can be crowd-sourced by a handful of volunteers, however well-meaning and active.
But someone has to decide to take action, make a case and coordinate effort. Without that initiative, the project is by default choosing option (1), to close itself down more or less gracefully.

Richard Pinch (talk) 16:32, 15 October 2023 (UTC)

Get rid of Springer logo ?

Maybe one should now get rid of the prominent Springer logo, but keep only some sentence somewhere about the history ?

And also we should get rid of the cookies. Who needs cookies here ?

Chapoton (talk) 20:26, 15 March 2023 (UTC)

Cookies warnings are still there, despite some claims to the contrary. F. Chapoton (talk) 09:50, 12 October 2023 (UTC)

MSC template link is broken ✅

The first link in the MSC template is currently broken. See for example on top of Arithmetic number. It should probably be removed, keeping only the MathSciNet and ZentralBlatt links.

I would like to add an OEIS template linking to https://oeis.org/ (done ✅)

F. Chapoton (talk) 09:29, 16 March 2023 (UTC)

And for course, it should be MSC2020, not MSC2010. F. Chapoton (talk) 08:33, 17 March 2023 (UTC) ✅
And the MSN and ZBL templates themselves are sometimes called with several codes, which leads nowhere. F. Chapoton (talk) 13:37, 17 March 2023 (UTC)
And the broken MSC link now points to a borked website, with spam. F. Chapoton (talk) 16:51, 13 August 2023 (UTC)
The MSN templates have been fixed now. Please report any issues. F. Chapoton (talk) 09:51, 12 October 2023 (UTC)

"How to cite" link should use https

At the bottom of every page, it still uses "http".

F. Chapoton (talk) 09:29, 16 March 2023 (UTC)

I have no idea where this is configured. This does not seem to be a template. F. Chapoton (talk) 09:48, 29 March 2023 (UTC)

For a random example, see Jet. F. Chapoton (talk) 10:19, 12 October 2023 (UTC)

Zbl is now free ✅

So we should change the little padlock icon besides the ZBL link in the ZBL template.

F. Chapoton (talk) 10:03, 16 March 2023 (UTC)

Unless the padlock icon means an exterior link ? F. Chapoton (talk) 14:30, 17 March 2023 (UTC)

I see that the padlock is for https links, so nothing to change after all. F. Chapoton (talk) 07:35, 28 March 2023 (UTC)

The DOI template should use https ✅

Because this is now the standard way to go.

F. Chapoton (talk) 08:13, 17 March 2023 (UTC)

Done, fixed. F. Chapoton (talk) 09:46, 12 October 2023 (UTC)

Get rid of empty comment sections

How can one find the list of articles containing an empty comment section ? How to get rid of them in some automatic way ?

Where can I find documentation on the API for the encyclopedia ?

F. Chapoton (talk) 13:06, 17 March 2023 (UTC)

ISBN template

We may like to have an IBSN template, as this appears in some references. But what should it link to ?

F. Chapoton (talk) 14:29, 17 March 2023 (UTC)

We could link to wikipedia tool for ISBN, namely "https://en.wikipedia.org/wiki/Special:BookSources/". F. Chapoton (talk) 09:05, 19 March 2023 (UTC)
The ISBN template doesn't currently exist, so using it means that the ISBN is no longer visible. At present, then, trying to use it is a step backwards. Richard Pinch (talk) 08:34, 28 August 2023 (UTC)
Hopefully, it will exists very soon. I am waiting for somebody to come back from holidays and give me the rights to create templates. F. Chapoton (talk) 08:39, 28 August 2023 (UTC)

The ISBN template has now been filled in a minimal way, just displaying the data. If we like, we can make it a link to something. Any preference or opinion ? F. Chapoton (talk) 09:43, 12 October 2023 (UTC)

We could also link to the page https://www.wikidata.org/wiki/Special:BookSources/978-2-26-702700-6 . F. Chapoton (talk) 19:46, 27 October 2023 (UTC)

One should now proceed with au automated search-and-remplace to apply the ISBN template in all possible places. F. Chapoton (talk) 08:12, 4 November 2023 (UTC)

Uploading images

When uploading images, one has no choice for the licence. This should be fixed. F. Chapoton (talk) 15:51, 17 March 2023 (UTC)

And I do not mean that there is only one choice. The list to choose among is **empty**. F. Chapoton (talk) 13:41, 1 May 2023 (UTC)

convert html letters to unicode

We should perform a mass replacement of things like "&uuml;" bu "ü" and "&egrave;" by "è", etc.

Also we should format the references tables for human source-code reading.

F. Chapoton (talk) 09:03, 19 March 2023 (UTC)

and maybe more importantly, the same for converting &gt; to ">" in latex code. F. Chapoton (talk) 09:03, 10 November 2023 (UTC)

allow STL files for 3D surface plots

As this would be very convenient, for example to illustrate Enneper surface.

This is possible and used on wikipedia.

F. Chapoton (talk) 18:18, 28 March 2023 (UTC)

This would also be useful for Parallelohedron. F. Chapoton (talk) 19:26, 5 October 2023 (UTC)

mediawiki update please

We should upgrade the version of mediawiki. In particular, to benefit of better math fonts in the svg files.

F. Chapoton (talk) 13:35, 1 May 2023 (UTC)

And now it seems that we have lost the possibility to "search-and-replace" when editing pages. F. Chapoton (talk) 13:07, 23 February 2024 (UTC)

OldImage template created

I have made a minimal {{OldImage}} template, that could be enhanced.

See Template:OldImage and pages linked to the template.

F. Chapoton (talk) 10:12, 12 October 2023 (UTC)

Allowed outer links

Maybe somebody should refresh the list of allowed external links. My recent changes to templates seem to trigger the captchas when editing every single page. F. Chapoton (talk) 11:45, 12 October 2023 (UTC)

In particular, please allow the external links to OEIS, as in the OEIS template. F. Chapoton (talk) 07:28, 7 November 2023 (UTC)
and the same for the DOI template, please ! F. Chapoton (talk) 09:27, 10 November 2023 (UTC)
Even the MR link is problematic, so please take action! F. Chapoton (talk) 08:28, 23 November 2023 (UTC)

using a better search engine

Maybe we could install the CirrusSearch extension ? It offers better search capabilities and in particular case-sensitive search.

https://www.mediawiki.org/wiki/Extension:CirrusSearch

F. Chapoton (talk) 08:55, 23 November 2023 (UTC)

How to Cite This Entry:
EoM:This project. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=EoM:This_project&oldid=20344