منابع مشابه
GA based Optimized SHEPWM Technique with Odd and Even Values
Selective Harmonic Elimination Pulse Width Modulation (SHEPWM) technique is one of the control techniques for inverters. It is mainly used for reducing the harmonic content in single phase and three phase inverters and to improve the power quality. The selection of switching angles for eliminating particular harmonic is difficult. The proposed method uses one of the soft computing techniques Ge...
متن کاملA Combinatorial Identity of Multiple Zeta Values with Even Arguments
Let ζ(s1, s2, · · · , sk;α) be the multiple Hurwitz zeta function. Given two positive integers k and n with k 6 n, let E(2n, k;α) be the sum of all multiple zeta values with even arguments whose weight is 2n and whose depth is k. In this note we present some generating series for the numbers E(2n, k;α).
متن کاملEven Powers of Divisors and Elliptic Zeta Values
We introduce and study elliptic zeta values, a two-parameter deformation of the values of Riemann’s zeta function at positive integers. They are essentially Taylor coefficients of the logarithm of the elliptic gamma function, and share the SL(3,Z) modular properties of this function. Elliptic zeta values at even integers are related to Eisenstein series and thus to sums of odd powers of divisor...
متن کاملFinite groups have even more centralizers
For a finite group $G$, let $Cent(G)$ denote the set of centralizers of single elements of $G$. In this note we prove that if $|G|leq frac{3}{2}|Cent(G)|$ and $G$ is 2-nilpotent, then $Gcong S_3, D_{10}$ or $S_3times S_3$. This result gives a partial and positive answer to a conjecture raised by A. R. Ashrafi [On finite groups with a given number of centralizers, Algebra Collo...
متن کاملMaking Even Swaps Even Easier
This paper introduces an approach to support different phases of the Even Swaps process by Preference Programming, which is a framework for modeling incomplete information within multiattribute value theory. In the approach, the Even Swaps process is carried out as usual, but in parallel the preferences of the decision maker are modeled with a Preference Programming model, which is also updated...
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ژورنال
عنوان ژورنال: Journal of Turkish Studies
سال: 2012
ISSN: 1308-2140
DOI: 10.7827/turkishstudies.3931