This is a conference marking the 50th anniversary of the publication of Barry Mazur’s “Modular curves and the Eisenstein ideal” and Ken Ribet’s “A modular construction of unramified p-extensions of Q(μ_p).” These two papers have been extremely influential and form the foundation for several of the most active areas of research in number theory today. The conference aims to facilitate interaction and spark engagement among these areas, which have developed great distinctiveness and depth over the last five decades even though they arise from common foundational texts. The speakers represent many of the areas influenced by Mazur’s and Ribet’s papers.
Further updates regarding the conference, including the agenda, will be posted on the conference website hosted by the Simons Foundation.
The Simons Foundation manages participation by invitation only. There was a registration of registration of interest form that is now closed as of March 16, 2026. First consideration for in-person participation was given to registrations that were received by December 15, 2025.
The organizers had a limited amount of funds available to support the travel expenses to attend the conference for researchers in junior career stages (graduate students and postdoctoral scholars), which has now been distributed.
Jennifer Balakrishnan (Boston University)
Abbey Bourdon (Wake Forest University)
Henri Darmon (Hebrew University and McGill University)
Samit Dasgupta (Duke University)
Shaunak Deo (Indian Institute of Science)
Matthew Emerton (University of Chicago)
Giada Grossi (Université Sorbonne Paris Nord)
Sachi Hashimoto (Brown University)
Ming-Lun Hsieh (National Taiwan University)
Catherine Hsu (Swarthmore College)
Mahesh Kakde (Indian Institute of Science)
Chandrashekhar Khare (ULCA)
Minhyong Kim (University of Edinburgh)
Jaclyn Lang (Temple University)
Emmanuel Lecouturier (Westlake University)
Loïc Merel (Université Paris Cité, IMJ-PRG)
Alice Pozzi (University of Bristol)
Romyar Sharifi (UCLA)
Christopher Skinner (Princeton University)
Naomi Sweeting (Princeton University)
Eric Urban (Columbia University)
Jan Vonk (Leiden University)
Hwajong Yoo (Seoul National University)
Support: We gratefully acknowledge support of this workshop by the Simons Foundation.
Organizers: Preston Wake and Carl Wang-Erickson
Scientific advisors: Barry Mazur and Ken Ribet