On extensions for gentle algebras
Representation Theory
2020-01-27 v3
Abstract
We give a complete description of a basis of the extension spaces between indecomposable string and quasi-simple band modules in the module category of a gentle algebra.
Cite
@article{arxiv.1707.06934,
title = {On extensions for gentle algebras},
author = {Ilke Canakci and David Pauksztello and Sibylle Schroll},
journal= {arXiv preprint arXiv:1707.06934},
year = {2020}
}
Comments
34 pages, updated statements on middle terms of extensions involving band modules