A. Saha

collaborators

2 papers

math.NT2026

Simple supercuspidal representations of $GSp_{4}$ and test vectors

Ameya Pitale, Abhishek Saha, Ralf Schmidt

We consider simple supercuspidal representations of $GSp_{4}$ over a $p$ -adic field and show that they have conductor exponent 5. We study (paramodular) newvectors and minim…

math.NT2025

Bounds on Fourier coefficients and global sup-norms for Siegel cusp forms of degree 2

Let $F$ be an $L^{2}$ -normalized Siegel cusp form for $Sp_{4} (Z)$ of weight $k$ that is a Hecke eigenform and not a Saito--Kurokawa lift. Assuming the Generalized Rie…

Simple supercuspidal representations of GSp4​ and test vectors

Bounds on Fourier coefficients and global sup-norms for Siegel cusp forms of degree 2

Simple supercuspidal representations of $GSp_{4}$ and test vectors