3 papers
math.AG2026
Semiorthogonal decompositions for stacks
Chenjing Bu, Tudor PÄdurariu, Yukinobu Toda
We give a systematic construction of semiorthogonal decompositions of derived categories of coherent sheaves on quasi-smooth derived algebraic stacks over , where the s…
math.AG2026
Topological K-theory of quasi-BPS categories of symmetric quivers with potential
Tudor PÄdurariu, Yukinobu Toda
In previous works, we introduced and studied certain categories called quasi-BPS categories associated to symmetric quivers with potential, preprojective algebras, and local surfac…
math.AG2025
Cohomology of symmetric stacks
Chenjing Bu, Ben Davison, Andrés Ibáñez Núñez +2
We construct decompositions of: (1) the cohomology of smooth stacks, (2) the Borel--Moore homology of -shifted symplectic stacks, and (3) the vanishing cycle cohomology of $(-1)…