Multiple Zeta Values and Modular Forms
Claudia Alfes
Universität Bielefeld, GermanyHenrik Bachmann
Nagoya University, JapanKathrin Bringmann
Universität zu Köln, GermanyJan-Willem van Ittersum
University of Amsterdam, Netherlands

Abstract
The workshop explored recent developments and clarified relationships between multiple zeta values (MZVs) and modular forms. Central themes included algebraic and linear relations among MZVs and their -analogues, the role of cusp forms, and links with partitions, representation theory, and mathematical physics. Several talks investigated variations of modular forms, including multiple Eisenstein series, vector-valued modular forms, and harmonic Maass forms, as well as variants of zeta functions and their functional equations. The workshop brought together junior and senior mathematicians from various subdirections of these areas.
Cite this article
Claudia Alfes, Henrik Bachmann, Kathrin Bringmann, Jan-Willem van Ittersum, Multiple Zeta Values and Modular Forms. Oberwolfach Rep. 23 (2026), no. 1, pp. 433–486
DOI 10.4171/OWR/2026/7