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On extensions for gentle algebras · arXivDesk

1707.06934Jul 21, 201734 pages, updated statements on middle terms of extensions involving band modules

On extensions for gentle algebras

Ilke Canakci, David Pauksztello, Sibylle Schroll

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.

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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.

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The paper addresses: On extensions for gentle algebras.
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.

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Author comment: 34 pages, updated statements on middle terms of extensions involving band modules