3 papers
math.AG2026
Automorphisms and deformations of regular semisimple Hessenberg varieties
Patrick Brosnan, Laura Escobar, Jaehyun Hong +4
We show that regular semisimple Hessenberg varieties can have moduli. To be precise, suppose is a regular semisimple Hessenberg variety of codimension in the flag variety $…
math.AG2025
Cohomology rings of character varieties
Anton Mellit
In this talk I give an introduction and present some recent progress towards understanding the cohomology rings of character varieties of Riemann surfaces, such as the proof of the…
math.AG2025
via
Tamas Hausel, Anton Mellit, Alexandre Minets +1
Let be the Lie algebra of polynomial Hamiltonian vector fields on the symplectic plane. Let be the moduli space of stable Higgs bundles of fixed relatively prim…