COHOMOLOGY OF ALGEBRAS OF SEMIDIHEDRAL TYPE. Ⅳ

摘要

The present paper continues a series of papers by the author (some of them are written in collaboration) in which the Yoneda algebra is calculated for several families of algebras of dihedral and semidihedral type (in K. Erdmann's classification). In the present paper, the Yoneda algebra is described (in terms of quivers with relations) for algebras of semidihedral type, namely, of the families SD(2A)_1, SD(2A)_2, and SD(3A)_2.