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arXiv · 2605.01747

A bibasic double sum extension of a $q$-binomial theorem arising out of subspace enumeration

Gaurav Bhatnagar·Amritanshu Prasad
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Abstract

We prove a conjecture that arose in the context of a subspace enumeration problem over finite fields. We prove, more generally, a bibasic, double-sum identity, which extends a $q$-analogue of the (terminating) binomial theorem.

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Gaurav Bhatnagar, Amritanshu Prasad. 2026-05-03. A bibasic double sum extension of a $q$-binomial theorem arising out of subspace enumeration. https://arxiv.org/abs/2605.01747

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