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math.RT2024★ 1 cited
-tilting theory and silting theory of skew group algebra extensions
Yuta Kimura, Ryotaro Koshio, Yuta Kozakai +2
Let be a finite dimensional algebra with an action by a finite group and the skew group algebra. One of our main results asserts that the canonical restriction-in…
math.RT2024
Derived preprojective algebras and spherical twist functors
Yuya Mizuno, Dong Yang
We study silting objects over derived preprojective algebras of acyclic quivers by giving a direct relationship between silting objects, spherical twist functors and mutations. Esp…
math.RT2024
Dimensions of -tilting modules over path algebras and preprojective algebras of Dynkin type
Toshitaka Aoki, Yuya Mizuno
In this paper, we introduce a new generating function called -polynomial for the dimensions of -tilting modules over a given finite dimensional algebra. Firstly, we study bas…