activity
20002026
most citedSummations and transformations for multiple basic and elliptic hypergeometric series by determinant evaluations

34 citations · 312 across the 53 of their papers we have counts for

collaborators

55 papers

hep-th2026

New Beta Integral from Supersymmetric Gauge Theory on Projective Space

Ilmar Gahramanov, Tuğba Hırlı, R. Semih Kanber +1

We derive a new beta-type basic hypergeometric integral identity from the equality of supersymmetric partition functions on . Unlike previously…

math.QA2026

A new product formula for , with applications to asymptotics

Arash Arabi Ardehali, Hjalmar Rosengren

We express the -Pochhammer symbol as an infinite product of gamma functions, analogously to how Narukawa expressed the elliptic gamma function as an infinite prod…

math-ph2025

Q-operators for the Ruijsenaars model

Eric Rains, Hjalmar Rosengren

We prove that the Ruijsenaars model admits a one-parameter commuting family of Q-operators. The commutativity is equivalent to an elliptic hypergeometric integral transformation th…

math.CA2024

String theory amplitudes and partial fractions

Hjalmar Rosengren

We give rigorous proofs and generalizations of partial fraction expansions for string amplitudes that were recently discovered by Saha and Sinha.

math.NT2023

On Some Double Nahm Sums of Zagier

Zhineng Cao, Hjalmar Rosengren, Liuquan Wang

Zagier provided eleven conjectural rank two examples for Nahm's problem. All of them have been proved in the literature except for the fifth example, and there is no -series pro…

math.NT2023

New proofs of the septic Rogers-Ramanujan identities

Hjalmar Rosengren

We give new proofs of the twelve Rogers-Ramanujan-type identities due to Rogers and Slater that are traditionally associated with the moduli 7, 14 and 28.