Charanya Ravi

activity

20172020

collaborators

4 papers

math.AG2020

Virtual equivariant Grothendieck-Riemann-Roch formula

Charanya Ravi, Bhamidi Sreedhar

For a $G$ -scheme $X$ with a given equivariant perfect obstruction theory, we prove a virtual equivariant Grothendieck-Riemann-Roch formula, this is an extension of a result of Fant…

math.KT2019

Rigidity in equivariant algebraic $K$ -theory

Niko Naumann, Charanya Ravi

If $(R, I)$ is a henselian pair with an action of a finite group $G$ and $n \geq 1$ is an integer coprime to $∣ G ∣$ and such that $n \cdot ∣ G ∣ \in R^{*}$ , then the reduction map of mod- $n$ …

math.AG2018

Rigidity for equivariant pseudo pretheories

Jeremiah Heller, Charanya Ravi, Paul Arne Østvær

We prove versions of the Suslin and Gabber rigidity theorems in the setting of equivariant pseudo pretheories of smooth schemes over a field with an action of a finite group. Examp…

math.AG2017

A Grothendieck-Lefschetz theorem for equivariant Picard groups