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arXiv · 0804.2014

A multiplication formula for module subcategories of Ext-symmetry

Jie Xiao·Fan Xu
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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 Schröer in \cite{GLS2006}.

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Jie Xiao, Fan Xu. 2009-02-03. A multiplication formula for module subcategories of Ext-symmetry. https://arxiv.org/abs/0804.2014

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