An addition type formula for the elliptic digamma function
An addition type formula for the elliptic digamma function
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椭圆二伽马函数的加法式公式
DOI:
10.1016/j.jmaa.2019.07.027
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发表时间:
2019
影响因子:
1.3
通讯作者:
Masakimi Kato
中科院分区:
文献类型:
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作者:
Masakimi Kato
Eisenstein derived addition formulas for the Weierstrass zeta function from the addition formula for the cotangent function and the fact that the Weierstrass zeta function can be represented as an infinite sum of the cotangent functions. In this paper, we apply this idea of Eisenstein's to the addition type formula for the double cotangent function, established by the author. We show that the elliptic digamma function, defined by the logarithmic derivative of the elliptic gamma function, satisfies an addition type formula. This formula includes the addition formula for the Weierstrass zeta function, evaluation formulas for the double Eisenstein series introduced by Tsumura and the double shuffle relations for the double Eisenstein series, proved by Gangl-Kaneko-Zagier.
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Ikehata;M and Ohe;T;松本久義
通讯作者:
松本久義