3 papers
math.NT2026
The Tetrahedral (or ) Symbol
Akshay Venkatesh, X. Griffin Wang
We will attach a scalar invariant to a tetrahedron whose edges are labelled by irreducible representations of a ternary orthogonal group over a local field. This ge…
math.AG2026
Relative Fundamental Lemmas for Spherical Hecke Algebras and Multiplicative Hitchin Fibrations: the Jacquet--Rallis Case
X. Griffin Wang, Zhiyu Zhang
We prove the Jacquet--Rallis fundamental lemma for spherical Hecke algebras over local function fields using multiplicative Hitchin fibrations. Our work is inspired by the proof of…
math.AG2025
Multiplicative Hitchin Fibrations and the Fundamental Lemma
X. Griffin Wang
Let be a finite field and let be a reductive group over . Suppose is larger than twice the Coxeter number of , we prove the standard endoscop…