On of finite dimensional algebras
arXiv:2301.08214
Abstract
We review results on the first Hochschild cohomology vector space of a finite dimensional algebra, in particular for path algebras modulo a "pre-generated" ideal. In case of a monomial algebra whose quiver has no oriented cycles, a dimension formula is provided. The general monomial case is considered in a paper with M. Saorin.
arXiv commentPublished in 2000 and not widely available