%0 Journal Article
%T Expansions of abelian categories
%A Xiao-Wu Chen
%A Henning Krause
%J Mathematics
%D 2010
%I arXiv
%X Expansions of abelian categories are introduced. These are certain functors between abelian categories and provide a tool for induction/reduction arguments. Expansions arise naturally in the study of coherent sheaves on weighted projective lines; this is illustrated by various applications.
%U http://arxiv.org/abs/1009.3456v1