Tejasi Bhatnagar

collaborators

4 papers

math.NT2026

Local monodromy of unit root F-isocrystals from Shimura varieties

Tejasi Bhatnagar

We generalise a local $p$ -adic monodromy theorem of Igusa that studies the monodromy representation associated to the universal elliptic curve around a supersingular point of the m…

math.AG2026

Covers of curves, Ceresa cycles, and Unlikely intersections

Tejasi Bhatnagar, Sheela Devadas, Toren D'Nelly-Warady +1

Fix a smooth, projective, geometrically integral curve $C$ of genus $g \geq 2$ over a characteristic zero field. We prove that the Ceresa cycle $Cer (C)$ of a v…

math.NT2024

Monodromy results for abelian surfaces and K3 surfaces with bad reduction

Tejasi Bhatnagar

The purpose of this paper is to prove a local p-adic monodromy theorem for ordinary abelian surfaces and K3 surfaces with bad reduction in characteristic p. As an application, we g…

math.NT2024

Size of isogeny classes of abelian varieties of Lubin-Tate type

Tejasi Bhatnagar

We prove a lower bound for the size of the isogeny class of a simple abelian variety over a finite field with commutative endomorphism ring in the Lubin-Tate case. Moreover, based…