On the number of terms in the middle of almost split sequences over cycle-finite artin algebras

arxiv: 1302.2497 · v1 · pith:CICMBD6Anew · submitted 2013-02-11 · 🧮 math.RT

Piotr Malicki , Jos\'e A. de la Pe\~na , Andrzej Skowro\'nski This is my paper

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keywords almostartincycle-finitemiddlenumbersplittermsalgebra

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We prove that the number of terms in the middle of an almost split sequence in the module category of a cycle-finite artin algebra is bounded by 5.

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