I am a Hans Rademacher Instructor of Mathematics at Department of Mathematics, University of Pennsylvania. My postdoctoral mentor is Mona Merling. I received my PhD from University of Illinois at Urbana-Champaign, advised by Matthew Ando. You can contact me at nczhang at sas dot upenn dot edu. My office is DRL 4N63.
Publications and preprints
Congruences of Eisenstein series of level Γ_1(N) via Dieudonné theory of formal groups, arXiv: 2006.15106. (Last update: June 2020)