**Email:** cassr[at]umich[dot]edu

Since Fall 2022 I am an NSF Postdoctoral Assistant Professor and Research Fellow at the University of Michigan. My mentor is Charlotte Chan.

My research interests include the Langlands program and related topics in algebraic geometry and representation theory. I am particularly interested in the application of ideas from the geometric Langlands program.

In 2021-2022 I was an NSF Postdoctoral Scholar at Caltech, where my sponsor was Xinwen Zhu. I received my Ph.D. in mathematics at Harvard University in 2021, advised by Mark Kisin. I completed my B.S. in mathematics at the University of Kentucky in 2016.

Geometrization of the Satake transform for mod p Hecke algebras (with Yujie Xu), Preprint, 2022.

The geometric Satake equivalence for integral motives (with Thibaud van den Hove and Jakob Scholbach), Preprint, 2022.

Constant term functors with F_p-coefficients (with Cédric Pépin), Preprint, 2021.

Central elements in affine mod p Hecke algebras via perverse F_p-sheaves, **Compositio Mathematica** 157 (2021), 2215–2241.

Perverse F_p-sheaves on the affine Grassmannian, **Journal für die Reine und Angewandte Mathematik** 785 (2022), 219–272.

Here are the arXiv versions of my papers.

Columbia University Automorphic Forms and Arithmetic Seminar - February 17, 2023

University of Padua Algebraic Geometry and Number Theory Seminar - February 13, 2023

Caltech Algebra & Geometry Seminar - May 16, 2022

MIT Lie Groups Seminar - April 6, 2022

UCLA Number Theory Seminar - March 7, 2022

Motives and Representation Theory at the University of Münster and Sydney - September 28, 2021

Representations of p-adic groups and Langlands correspondences at the CMS 75th +1 Anniversary Summer Meeting in Ottawa, Canada - June 8, 2021

UCLA Number Theory Seminar - March 1, 2021

University of Münster Arithmetic Geometry Seminar - December 8, 2020

University of Maryland Lie Groups and Representation Theory Seminar - September 14, 2020

Harvard Number Theory Seminar - September 9, 2020

Recent Advances in Modern p-Adic Geometry (RAMpAGe) Seminar - August 20, 2020

Graduate Student Plenary Speaker at Number Theory Series in Los Angeles II, Occidental College - February 8, 2020

University of Michigan Algebraic Geometry Seminar - February 5, 2020

Institut de Recherche Mathématique de Rennes, Séminaire de Géométrie Arithmétique - December 19, 2019

L'Institut Galilée, Paris 13, Séminaire de Géométrie Arithmétique et Motivique - December 13, 2019

Yale Algebra and Number Theory Seminar - December 3, 2019

MSRI Hot Topics Workshop: Recent Progress In Langlands Program - April 8, 2019

Clemson University Algebraic Geometry and Number Theory Seminar - March 24, 2015

In 2021-2022 I organized the Caltech Algebra & Geometry Seminar with Abhishek Oswal.

In 2020-2021 I organized the Harvard Number Theory Seminar with Fabian Gundlach.

**At Harvard:**

Matehmatics 21B: Linear Algebra and Differential Equations - Spring 2021

Mathematics MA: Introduction to Functions and Calculus I - Fall 2019

I received a Certificate of Distinction for each of these courses.

Hurwitz schemes - my minor thesis