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- ''Euler's totient function'' ...ot exceeding $n$ and relatively prime to $n$ (the "totatives" of $n$). The Euler function is a [[multiplicative arithmetic function]], that is $\phi(1)=1$ a2 KB (318 words) - 09:27, 10 November 2023
- ''Euler–Lagrange operator'' ...for variational problems must satisfy (cf. also [[Euler–Lagrange equation|Euler–Lagrange equation]]).17 KB (2,575 words) - 17:45, 1 July 2020
- See also [[Euler identity|Euler identity]] and [[Zeta-function|Zeta-function]].557 bytes (85 words) - 18:50, 18 October 2014
- ...oriented $n$-dimensional [[Manifold|manifold]] may be calculated from the Euler class of the [[Tangent bundle|tangent bundle]] [[#References|[a1]]], p. 348794 bytes (108 words) - 18:57, 17 April 2014
- The Euler–Frobenius polynomials $p _ { m } ( x )$ of degree $m - 1 \geq 0$ are char ...invariance of this kind is to look for an appropriate space with which the Euler–Frobenius polynomials $( p _ { m } ( x ) ) _ { m \geq 1 }$ are attached i5 KB (742 words) - 07:27, 25 January 2024
- 54 bytes (8 words) - 18:01, 2 May 2012
- is summable by means of the Euler summation method ($(E,q)$-summable) to the sum $S$ if ...hen its terms $a_n$ satisfy the condition $a_n=o((2q+1)^n)$, $q\geq0$. The Euler summation method can also be applied for analytic continuation beyond the d2 KB (358 words) - 17:36, 14 February 2020
- $#C+1 = 34 : ~/encyclopedia/old_files/data/E036/E.0306520 Euler\ANDMacLaurin formula then the Euler–MacLaurin formula becomes5 KB (745 words) - 09:18, 6 January 2024
- #REDIRECT [[Euler function]]28 bytes (3 words) - 21:24, 23 December 2015
- ...s or right-angled, or both right-angled and isosceles. The segments of the Euler line satisfy the relation This line was first considered by L. Euler (1765).730 bytes (113 words) - 20:16, 16 January 2016
- A generalization of the Goldbach–Euler problem (cf. [[Goldbach problem|Goldbach problem]]) according to which any ...of the distribution of prime numbers allows one to solve both the Goldbach–Euler problem and the more general problem of solvability of the linear Diophanti1 KB (201 words) - 20:18, 14 October 2014
- ...(x,y)$ is zero. Particular integrals for it were obtained by G. Monge. The Euler–Lagrange equation was systematically investigated by S.N. Bernshtein, who The Euler–Lagrange equation can be generalized with respect to the dimension: The e3 KB (501 words) - 18:46, 13 November 2014
- ...3]]], the colliding of gravitational waves [[#References|[a6]]], etc.. The Euler–Poisson–Darboux equation has rather interesting properties, e.g. in rel A formal solution to the Euler–Poisson–Darboux equation has the form [[#References|[a8]]]9 KB (1,341 words) - 20:49, 23 January 2024
- 38 bytes (3 words) - 11:24, 26 December 2013
- ...ents satisfy certain compatibility conditions. Generally, almost all known Euler systems satisfy the condition ES) described below. Let $K$ be a number fiel ...pping from $K ( L l )$ down to $K ( L )$. Next to condition ES), any given Euler system may have additional properties, cf. [[#References|[a4]]], [[#Referen19 KB (2,901 words) - 17:41, 25 November 2023
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- See also [[Euler identity|Euler identity]] and [[Zeta-function|Zeta-function]].557 bytes (85 words) - 18:50, 18 October 2014
- ...that starts at the vertex. The centroid lies on the [[Euler straight line|Euler line]].809 bytes (127 words) - 14:54, 2 May 2023
- ...itrary real number and the product extends over all prime numbers $p$. The Euler identity also holds for all complex numbers $s = \sigma + it$ with $\sigma The Euler identity can be generalized in the form2 KB (279 words) - 19:13, 14 December 2015
- considered by L. Euler (1740). Its existence follows from the fact that the sequence ...mber $\gamma$ is also known as the ''Euler-Mascheroni'' constant, after L. Euler (1707–1783) and L. Mascheroni (1750–1800).2 KB (328 words) - 11:50, 23 November 2023
- A smooth solution of the [[Euler equation|Euler equation]], which is a necessary extremum condition in the problem of varia Euler's equation has the form7 KB (1,043 words) - 19:38, 5 June 2020
- $#C+1 = 34 : ~/encyclopedia/old_files/data/E036/E.0306530 Euler method by a polygonal line (Euler's polygonal line) whose segments are rectilinear on the intervals $ [ x _6 KB (877 words) - 19:38, 5 June 2020
- ...ides the order of the group. Fermat's little theorem was generalized by L. Euler to the case modulo an arbitrary $m$. Namely, he proved that for every numbe where $\phi(m)$ is the [[Euler function|Euler function]]. Another generalization of Fermat's little theorem is the equati2 KB (257 words) - 18:02, 8 November 2014
- ..., 1740). There exists a constant $\gamma>0$, known as the [[Euler constant|Euler constant]], such that $S_n = \ln n + \gamma + \varepsilon_n$, where $\lim\l1 KB (234 words) - 10:24, 10 December 2012
- ...$10^n-1$. Thus, the period length divides $\phi(q)$, the [[Euler function|Euler function]].823 bytes (124 words) - 10:22, 27 September 2014
- is summable by means of the Euler summation method ($(E,q)$-summable) to the sum $S$ if ...hen its terms $a_n$ satisfy the condition $a_n=o((2q+1)^n)$, $q\geq0$. The Euler summation method can also be applied for analytic continuation beyond the d2 KB (358 words) - 17:36, 14 February 2020
- ''$B$-function, Euler $B$-function, Euler integral of the first kind''1,009 bytes (161 words) - 17:31, 11 November 2023
- is equal to its [[Euler characteristic|Euler characteristic]]. Betti numbers were introduced by E. Betti [[#References|[1 KB (172 words) - 13:05, 14 February 2020
- The simplest method of computing a denumerant is by Euler's recurrence relation:1 KB (185 words) - 16:46, 23 November 2023
- ...a is employed in the calculus of variations to derive the [[Euler equation|Euler equation]] in its integral form. In this proof it is not necessary to assum1 KB (183 words) - 15:14, 27 August 2014
- The spiral of Cornu is sometimes called the spiral of Euler after L. Euler, who mentioned it first (1744). Beginning with the works of A. Cornu (1874)1 KB (205 words) - 10:58, 26 March 2023
- where $c=0.5772\ldots$ is the [[Euler constant|Euler constant]] and $\operatorname{Ci}(x)$ is the [[Integral cosine|integral cos1 KB (161 words) - 14:30, 14 February 2020
- $#C+1 = 61 : ~/encyclopedia/old_files/data/E036/E.0306620 Euler transformation The Euler transformation of series. Given a series6 KB (972 words) - 12:59, 6 January 2024
- ...the existence of Euler cycles (Euler's theorem): A connected graph has an Euler cycle if and only if each of its vertices (except two) has even degree. A graph is said to be Hamiltonian (Eulerian) if it has a Hamilton (Euler) cycle. A graph is said to be Hamilton-connected if any two of its vertices4 KB (632 words) - 20:10, 15 March 2023
- ...ence is unsolvable, then $a$ is called a quadratic non-residue modulo $m$. Euler's criterion: Let $p>2$ be prime. Then an integer $a$ coprime with $p$ is a1 KB (184 words) - 13:35, 14 September 2014
- ...n the $(x,y)$-plane for which the general integral of the [[Euler equation|Euler equation]] can be represented in the form1 KB (227 words) - 19:28, 26 March 2023