Online seminars by Dr. Badri Vishal Pandey, University of Cologne, Germany on 20 May 2026

We are happy to announce the following online seminar on 20 May 2026. The details are as follows:

Speaker:Dr. Badri Vishal Pandey,

Affiliation: University of Cologne, Germany

Title:Ramanujan and harmonic Maass-Jacobi forms

Time & Date: 20 May 2026 (Wednesday), 11:00 hrs
Venue: Harish-chandra Seminar hall (MSB 215)

Abstract:We study an extension of Ramanujan’s identities for odd zeta values by Lim and introduce a Jacobi analogue of the Eichler integral of the classical Eisenstein series. We construct an explicit completion of these objects and show that it is a (singular) harmonic Maass–Jacobi form. We further describe its non-holomorphic part by an Eichler-like integral similar to harmonic Maass forms, establish Ramanujan-type modular inversion formulas generalizing the result of Lim, and study the explicit behavior under the raising operator and at torsion points.