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math.AG2025
Euler characteristics of moduli of twisted sheaves on Enriques surfaces
Dirk van Bree, Weisheng Wang
Let be an Enriques surface and let be an Azumaya algebra corresponding to the non-trivial Brauer class. Let be the moduli space of stable twisted sheaves on E…
math.AG2024
Virasoro constraints for K3 surfaces and monodromy operators
Weisheng Wang
The Virasoro constraints for moduli spaces of stable torsion free sheaves on a surface with only -cohomology were recently proved by Bojko-Moreira-Lim. The rank 1 case, whic…