5 papers
A Hochschild-Kostant-Rosenberg type theorem for coherent matrix factorizations
Arnab Kundu, Bhamidi Sreedhar
In this article, we prove a Hochschild-Kostant-Rosenberg type theorem for the category of coherent matrix factorizations associated to a Landau-Ginzburg model (X,f), where X is a q…
Riemann-Roch for stacky matrix factorizations
Dongwook Choa, Bumsig Kim, Bhamidi Sreedhar
We establish a Hirzebruch-Riemann-Roch type theorem and Grothendieck-Riemann-Roch type theorem for matrix factorizations on quotient Deligne-Mumford stacks. For this we first const…
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…
Localization by 2-periodic complexes and virtual structure sheaves
Jeongseok Oh, Bhamidi Sreedhar
B. Kim and the first author proved a result comparing the virtual fundamental classes of the moduli spaces of stable quasimaps and stable LG-quasimaps by studying localized Chern c…
Atiyah-Segal theorem for Deligne-Mumford stacks and applications
Amalendu Krishna, Bhamidi Sreedhar
We prove an Atiyah-Segal isomorphism for the higher -theory of coherent sheaves on quotient Deligne-Mumford stacks over $\C$. As an application, we prove the Grothendieck-Rieman…