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arXiv 1208.6316math.NT
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关于部分θ函数与Appell-Lerch和的对偶性质

On the dual nature of partial theta functions and Appell-Lerch sums

Eric Mortenson

摘要:

在最近的工作中,Hickerson和作者证明了将Appell-Lerch和看作部分θ函数是有用的。这个概念可以用来联系身份涉及部分θ函数的身份涉及Appell-Lerch总和。在这个意义上,Appell-Lerch和和部分θ函数似乎是对偶的对方。这种对偶理论是没有什么不同的发现安德鲁斯之间的各种身份的罗杰斯-拉马努金型相对于巴克斯特的解决方案的硬六边形模型的统计力学。作为一个应用,我们构造双边$q$系列与混合模拟模块化行为。

英文摘要:

In recent work, Hickerson and the author demonstrated that it is useful to think of Appell--Lerch sums as partial theta functions. This notion can be used to relate identities involving partial theta functions with identities involving Appell--Lerch sums. In this sense, Appell--Lerch sums and partial theta functions appear to be dual to each other. This duality theory is not unlike that found by Andrews between various sets of identities of Rogers-Ramanujan type with respect to Baxter's solution to the hard hexagon model of statistical mechanics. As an application we construct bilateral $q$-series with mixed mock modular behaviour.

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