String algebras over local rings: regular examples

Abstract

String algebras, in the usual sense, are finite-dimensional algebras over a given ground field. We recall a generalisation of the definition of a string algebra, which was introduced in a previous paper of the author. This generalisation replaces the ground field with a noetherian local ring. We provide a way to generate examples of string algebras over any regular local ring, which depends on the Krull dimension.