Mathematical and Statistical Sciences Faculty Publications and Presentations

Document Type

Article

Publication Date

2-2023

Abstract

We obtain a three-parameter q-series identity that generalizes two results of Chan and Mao. By specializing our identity, we derive new results of combinatorial significance in connection with N(r,s,m,n), a function counting certain overpartition pairs recently introduced by Bringmann, Lovejoy and Osburn. For example, one of our identities gives a closed-form evaluation of a double series in terms of Chebyshev polynomials of the second kind, thereby resulting in an analogue of Euler's pentagonal number theorem. Another of our results expresses a multi-sum involving N(r,s,m,n) in terms of just the partition function p(n). Using a result of Shimura we also relate a certain double series with a weight 7/2 theta series.

Comments

Postdoc publication. Original published version available at https://doi.org/10.1016/j.aam.2022.102444

Publication Title

Advances in Applied Mathematics

DOI

10.1016/j.aam.2022.102444

Included in

Mathematics Commons

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