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arXiv · 2312.06132

MacMahon's sums-of-divisors and their connection to multiple Eisenstein series

Henrik Bachmann
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Abstract

We give explicit expressions for MacMahon's generalized sums-of-divisors $q$-series $A_r$ and $C_r$ by relating them to (odd) multiple Eisenstein series. Recently, these sums-of-divisors have been studied in the context of quasimodular forms, vertex algebras, $N=4$ $SU(N)$ Super-Yang-Mills theory, and the study of congruences of partitions. We relate them to a broader mathematical framework and give explicit expressions for both $q$-series in terms of Eisenstein series and their odd variants.

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Henrik Bachmann. 2023-12-11. MacMahon's sums-of-divisors and their connection to multiple Eisenstein series. https://arxiv.org/abs/2312.06132

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