34 citations · 260 across the 72 of their papers we have counts for
4 papers · 2 filters
Extension algebras of standard modules
Liping Li
Let be a finite dimensional -algebra standardly stratified for a partial order and be the direct sum of all standard modules. In this paper we study the exte…
Algebras stratified for all linear orders
Liping Li
In this paper we describe several characterizations of basic finite-dimensional -algebras stratified for all linear orders, and classify their graded algebras as tensor alge…
A generalized Koszul theory and its application
Liping Li
Let be a graded algebra. In this paper we develop a generalized Koszul theory by assuming that is self-injective instead of semisimple and generalize many classical resul…
A Characterization of Finite EI Categories with Hereditary Category Algebras
Liping Li
In this paper we give an explicit algorithm to construct the ordinary quiver of a finite EI category for which the endomorphism groups of all objects have orders invertible in the…