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math.RT2026
Tilting realizations of derived-equivalent matrix centralizer algebras
Jiangsheng Hu, Xin Ma, Jinbi Zhang +1
Let be the centralizer algebra of a matrix over an arbitrary field. We solve the fixed-source realization problem for matrix centralizers by proving that the matrix centralizer…
math.RT2026
Non-standard derived equivalences over arbitrary fields
Jinbi Zhang
In 1991 Rickard asked whether every derived equivalence between finite-dimensional algebras over a common field is standard. Hu, Xi and Zhang constructed non-standard derived equiv…