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arXiv math/0305079math.CAmath-phmath.MP
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一个广义多Γ函数

A generalized polygamma function

Olivier Espinosa, Victor H. Moll

摘要:

研究了函数$ψ(z, q)$的性质(广义多Γ函数),与Hurwitz zeta函数密切相关,并为变量$z$和$q$的复值定义,它在变量$z$中是整函数,并简化为通常的多Γ函数$ψ^{(m)}(q)$,其中$z$是非负整数$m$,并且对于$z$的平衡的多项式γ函数$ψ^{(-m)}(q)$为负整数$-m$。

英文摘要:

We study the properties of a function $ψ(z, q)$ (the generalized polygamma function), intimately connected with the Hurwitz zeta function and defined for complex values of the variables $z$ and $q$, which is entire in the variable $z$ and reduces to the usual polygamma function $ψ^{(m)}(q)$ for $z$ a non-negative integer $m$, and to the balanced negapolygamma function $ψ^{(-m)}(q)$ for $z$ a negative integer $-m$.

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