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τ-tilting modules over one-point extensions by a projective module

2017/05/20 by Suarez, Pamela
#FOS: Mathematics #Representation Theory (math.RT)

paper · doi:10.48550/arxiv.1705.07233

Abstract

Let A be the one point extension of an algebra B by a projective B-module. We prove that the extension of a given support τ-tilting B-module is a support τ-tilting A-module; and, conversely, the restriction of a given support τ-tilting A-module is a support τ-tilting B-module. Moreover, we prove that there exists a full embedding of quivers between the corresponding poset of support τ-tilting modules.

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