A multiplication formula for module subcategories of Ext-symmetry
Representation Theory
2009-02-03 v2 Rings and Algebras
Abstract
We define evaluation forms associated to objects in a module subcategory of Ext-symmetry generated by finitely many simple modules over a path algebra with relations and prove a multiplication formula for the product of two evaluation forms. It is analogous to a multiplication formula for the product of two evaluation forms associated to modules over a preprojective algebra given by Geiss, Leclerc and Schr\"oer in \cite{GLS2006}.
Cite
@article{arxiv.0804.2014,
title = {A multiplication formula for module subcategories of Ext-symmetry},
author = {Jie Xiao and Fan Xu},
journal= {arXiv preprint arXiv:0804.2014},
year = {2009}
}
Comments
12 pages