The Formal Dimension of a Toplogical Space.
We investigate derived equivalences between subalgebras of some -Auslander-Yoneda algebras from a class of -angles in weakly -angulated categories. The derived equivalences are obtained by transferring subalgebras induced by -angles to endomorphism algebras induced by approximation sequences. Then we extend our constructions in T. Brüstle, S. Y. Pan (2016) to -angle cases. Finally, we give an explicit example to illustrate our result.
Let p be a prime, and let ℱ be the category of functors from the finite -vector spaces to all -vector spaces. The object Id of ℱ is the inclusion functor. Let F and G be two objects in ℱ. If F and G satisfy suitable conditions, the main result of this paper allows one to compute from the knowledge of and .