arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1804.00580math.NT
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雅可比θ函数的一个加法公式及其应用

An addition formula for the Jacobian theta function with applications

Bing He, Hongcun Zhai

摘要:

利用椭圆函数的理论,建立了雅可比θ函数的加法公式。从这个加法公式,他获得了拉马努金三次θ函数身份,温奎斯特的身份,一个θ函数身份与五个参数,以及许多其他有趣的θ函数身份。本文给出了雅可比θ函数的一个加法公式,它与刘氏加法公式等价。在此基础上,我们推出了一些已知的θ函数恒等式和新的恒等式。根据这些恒等式,我们将建立某些新的级数展开式,

英文摘要:

Liu established an addition formula for the Jacobian theta function by using the theory of elliptic functions. From this addition formula he obtained the Ramanujan cubic theta function identity, Winquist's identity, a theta function identities with five parameters, and many other interesting theta function identities. In this paper we will give an addition formula for the Jacobian theta function which is equivalent to Liu's addition formula. Based on this formula we deduce some known theta function identities as well as new identities. From these identities we shall establish certain new series expansions for

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