On a Deformation Theory of Finite Dimensional Modules Over Repetitive Algebras

Let Λ be a basic finite dimensional algebra over an algebraically closed field k, and let Λ be the repetitive algebra of Λ. In this article, we prove that if V is a left Λ-module with finite dimension b over k, then V has a well-defined versal deformation ring R(Λ, V), which is a local complete Noet...