Cassandra (Cass) Halleck-Dubé

Talks

Talks & seminars

Talks listed in my curriculum vitae, in reverse chronological order.

2026

Geometry of the Weighted Fundamental Lemma

Algebraic Geometry and Number Theory seminar, UC Davis

The Weighted Fundamental Lemma and Geometric Endoscopy

Junior Number Theory Days, Johns Hopkins University

2025

The Weighted Fundamental Lemma for nonsplit groups

Workshop on Arthur’s Endoscopic Classification, University of Chicago Paris Center

2024

Hitchin Truncation for Relative Reductive Groups

Spec ℚ(2πi)

2022

The Cartier Isomorphism and De Rham Cohomology in Characteristic p

Number Theory Learning Seminar, UC Berkeley

Moduli Space of Langlands Parameters

Berkeley-Stanford Joint Number Theory Working Seminar

Moduli space of curves and abelian varieties

Number Theory Learning Seminar, UC Berkeley

Representations of totally disconnected groups

Automorphic Representations Learning Seminar, UC Berkeley

Automorphic representations in the L²-sense

Automorphic Representations Learning Seminar, UC Berkeley

2021

Construction of Quot schemes

Student Arithmetic Geometry Seminar, UC Berkeley

Base change and the q-expansion principle

Student Number Theory Seminar, University of California, Berkeley, CA

Modular forms and q-expansions in algebraic geometry

Student Number Theory Seminar, University of California, Berkeley, CA

2017

Enumerating Hassett’s decomposition of the moduli of curves

MAA Student Paper Session, MathFest, Chicago, IL

With Daniel Gershenson and Elaine Hou.

2016

Simplicial Complexes and Effective Divisors on M̄₀,ₙ

MAA Student Paper Session, MathFest, Columbus, OH

With Jocelyn Wang and Nick Wawrykow.