AR-sequence of graded Kronecker modules

发布时间：2019-03-14 作者：浏览次数：

Speaker:	刘杰	DateTime:	2019年03月18日（周一）下午4:00-5:00
Brief Introduction to Speaker: 刘杰，基尔大学。		Place:	六号楼二楼报告厅
Abstract:We talk about the regular indecomposable modules for the covering T(n) of Kronecker quiver K(n) and give a relationship between Y and \sigma(Z) in an AR-sequence 0\rightarrow X\rightarrow Y\rightarrow Z\rightarrow 0 in mod(T(n),\Omega).We also prove that width \cW(\cD)>0 for every regular component \cD of rep_k(T(n),\Omega).