Difference between revisions of "Brun theorem"
From Encyclopedia of Mathematics
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''on prime twins'' | ''on prime twins'' | ||
| − | The series | + | The series $\sum 1/p$ is convergent if $p$ runs through all (the first members of all) prime [[Twins|twins]]. This means that even if the number of prime twins is infinitely large, they are still located in the natural sequence rather sparsely. This theorem was demonstrated by V. Brun [[#References|[1]]]. The convergence of a similar series for generalized twins was proved at a later date. |
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====Comments==== | ====Comments==== | ||
| − | + | The value of the sum over all elements of prime twins has been estimated as 1.9021605831…. | |
====References==== | ====References==== | ||
| − | <table><TR><TD valign="top">[a1]</TD> <TD valign="top"> H. Halberstam, H.-E. Richert, "Sieve methods" , Acad. Press (1974)</TD></TR></table> | + | <table> |
| + | <TR><TD valign="top">[1]</TD> <TD valign="top"> V. Brun, "La série $\frac1{5} + \frac1{7} + \frac1{11} + \frac1{13} + \frac1{17} + \frac1{19} + \frac1{29} + \frac1{31} + \frac1{41} + \frac1{43} + \frac1{59} + \frac1{61} + \ldots$ où les dénominateurs sont "nombres premiers jumeaux" est convergente ou finie" ''Bull. Sci. Math. (2)'' , '''43''' (1919) pp. 100–104; 124–128</TD></TR> | ||
| + | <TR><TD valign="top">[2]</TD> <TD valign="top"> E. Trost, "Primzahlen" , Birkhäuser (1953)</TD></TR> | ||
| + | <TR><TD valign="top">[a1]</TD> <TD valign="top"> H. Halberstam, H.-E. Richert, "Sieve methods" , Acad. Press (1974)</TD></TR> | ||
| + | <TR><TD valign="top">[b1]</TD> <TD valign="top"> Steven R. Finch, ''Mathematical Constants'', Cambridge University Press (2003) {{ISBN|0-521-81805-2}} {{ZBL|1054.00001}}</TD></TR> | ||
| + | </table> | ||
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| + | [[Category:Number theory]] | ||
Latest revision as of 05:56, 15 April 2023
on prime twins
The series $\sum 1/p$ is convergent if $p$ runs through all (the first members of all) prime twins. This means that even if the number of prime twins is infinitely large, they are still located in the natural sequence rather sparsely. This theorem was demonstrated by V. Brun [1]. The convergence of a similar series for generalized twins was proved at a later date.
Comments
The value of the sum over all elements of prime twins has been estimated as 1.9021605831….
References
| [1] | V. Brun, "La série $\frac1{5} + \frac1{7} + \frac1{11} + \frac1{13} + \frac1{17} + \frac1{19} + \frac1{29} + \frac1{31} + \frac1{41} + \frac1{43} + \frac1{59} + \frac1{61} + \ldots$ où les dénominateurs sont "nombres premiers jumeaux" est convergente ou finie" Bull. Sci. Math. (2) , 43 (1919) pp. 100–104; 124–128 |
| [2] | E. Trost, "Primzahlen" , Birkhäuser (1953) |
| [a1] | H. Halberstam, H.-E. Richert, "Sieve methods" , Acad. Press (1974) |
| [b1] | Steven R. Finch, Mathematical Constants, Cambridge University Press (2003) ISBN 0-521-81805-2 Zbl 1054.00001 |
How to Cite This Entry:
Brun theorem. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Brun_theorem&oldid=16073
Brun theorem. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Brun_theorem&oldid=16073
This article was adapted from an original article by N.I. Klimov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article