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arXiv 0802.3277math.NTmath.CO
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广义秩矩和Durfee符号的generating functions的自守性质

Automorphic properties of generating functions for generalized rank moments and Durfee symbols

Kathrin Bringmann, Jeremy Lovejoy, Robert Osburn

摘要:

我们定义了两个组合结构的安德鲁斯的两个参数的推广:第k次对称秩矩和k-标记Durfee符号。我们证明了相关的生成函数的三个专业化是所谓的准模拟θ函数,而第四专业化给出准模形式。然后,我们定义了一个两个参数的推广安德鲁斯的最小部分的功能,并指出,这将导致准模拟θ函数以及。的自守性质推导出使用q-系列的身份有关的生成函数已知的模拟θ函数。

英文摘要:

We define two-parameter generalizations of two combinatorial constructions of Andrews: the kth symmetrized rank moment and the k-marked Durfee symbol. We prove that three specializations of the associated generating functions are so-called quasimock theta functions, while a fourth specialization gives quasimodular forms. We then define a two-parameter generalization of Andrews' smallest parts function and note that this leads to quasimock theta functions as well. The automorphic properties are deduced using q-series identities relating the relevant generating functions to known mock theta functions.

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