collaborators

6 papers

math.NT2026

Proof of a conjecture of Andrews and El Bachraoui on the parity of two-color partitions

Koustav Banerjee, Kathrin Bringmann

In this paper, we prove a conjecture of Andrews and El Bachraoui concerning the parity of certain two-color partitions. Precisely, we show that if the Fourier coefficient

math.NT2026

Proof of a conjecture of Andrews and Bachraoui on a Hecke sum

Koustav Banerjee, Kathrin Bringmann

In this paper, we prove a conjecture of Andrews and Bachraoui relating a generating function arising from two-color partitions (with odd smallest part and restrictions on the even…

math.NT2026

On congruence conjectures of Andrews and Bachraoui

Koustav Banerjee, Kathrin Bringmann, Mohamed El Bachraoui

Andrews and the third author recently studied congruences for certain restricted two-color partitions. They made two conjectures for Ramanujan-type congruences and a vanishing iden…

math.NT2026

Restricted Overpartitions and concave compositions: their modularity and asymptotics

Koustav Banerjee, Kathrin Bringmann, Atul Dixit

In this paper we study restricted overpartitions and concave compositions. In several cases the resulting generating functions involve simultaneously modular forms, mock theta func…

math.NT2026

On a conjecture of Andrews and Bachraoui

Koustav Banerjee, Kathrin Bringmann, William J. Keith

Recently, Andrews and Bachraoui considered a generating function associated with certain two-color partitions, and conjectured that this function has non-negative coef…

math.NT2025

A generic approach to proving Turán-type inequalities for sequences that admit exact formulas, with an application to unimodal sequences

Koustav Banerjee, Kathrin Bringmann, Ben Kane

We derive an asymptotic expansion with effective error bound for , counting the number of unimodal sequences of size . We prove that satisfies the higher order TurÃ…