8 citations · 19 across the 11 of their papers we have counts for
13 papers
Local multiplicities for an equivariantly enriched non-transverse Bézout's theorem
Candace Bethea, Charanya Ravi
We introduce the degree and local degree in equivariant motivic homotopy theory for the purpose of studying equivariant enumerative problems over general fields. Given a finite, ta…
The stacky concentration theorem
Dhyan Aranha, Adeel A. Khan, Alexei Latyntsev +2
We give a sufficient criterion for the Chow or algebraic bordism groups of an algebraic stack, localized at a set of Chern classes of line bundles, to be concentrated in some close…
Cohomological and categorical concentration
Adeel A. Khan, Charanya Ravi
Given a torus action on a compact space X, a fundamental result of Borel and Atiyah-Segal asserts that the equivariant cohomology of X is concentrated in the fixed locus X^T, up to…
Equivariant generalized cohomology via stacks
Adeel A. Khan, Charanya Ravi
We prove a general form of the statement that the cohomology of a quotient stack can be computed by the Borel construction. It also applies to the lisse extensions of generalized c…
Virtual localization revisited
Dhyan Aranha, Adeel A. Khan, Alexei Latyntsev +2
Let be a split torus acting on an algebraic scheme with fixed locus . Edidin and Graham showed that on localized -equivariant Chow groups, (a) push-forward alon…
Generalized cohomology theories for algebraic stacks
Adeel A. Khan, Charanya Ravi
We extend the stable motivic homotopy category of Voevodsky to the class of scalloped algebraic stacks, and show that it admits the formalism of Grothendieck's six operations. Obje…
Categorical Milnor squares and K-theory of algebraic stacks
Tom Bachmann, Adeel A. Khan, Charanya Ravi +1
We introduce a notion of Milnor square of stable -categories and prove a criterion under which algebraic K-theory sends such a square to a cartesian square of spectra. We a…
Virtual equivariant Grothendieck-Riemann-Roch formula
Charanya Ravi, Bhamidi Sreedhar
For a -scheme 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…
Rigidity in equivariant algebraic -theory
Niko Naumann, Charanya Ravi
If is a henselian pair with an action of a finite group and is an integer coprime to and such that , then the reduction map of mod-…
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…
A Grothendieck-Lefschetz theorem for equivariant Picard groups
Charanya Ravi
We prove a Grothendieck-Lefschetz theorem for equivariant Picard groups of non-singular varieties with finite group actions.
Algebraic K-theory of quotient stacks
Amalendu Krishna, Charanya Ravi
We prove some fundamental results like localization, excision, Nisnevich descent and the Mayer-Vietoris property for equivariant regular blow-up for the equivariant K-theory of sch…
Equivariant vector bundles, their derived category and -theory on affine schemes
Amalendu Krishna, Charanya Ravi
Let be an affine group scheme over a noetherian commutative ring . We show that every -equivariant vector bundle on an affine toric scheme over with -action is ext…