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From brick manifolds to Grassmannians of bimodules
Evgeny Feigin, Markus Reineke
We study a class of Grassmannians of sub-bimodules over the path algebras of quivers. Our quiver Grassmannians include Escobar's brick manifolds as well as Labelle's generalization…
math.RT2025
Type A algebraic coherence conjecture of Pappas and Rapoport
Evgeny Feigin, an appendix in collaboration with Andrey Karenskih
The Pappas--Rapoport coherence conjecture, proved by Zhu, states that the dimensions of spaces of sections of certain line bundles coincide. The two sides of the equality correspon…