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arXiv · 1302.2497

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

Piotr Malicki·José A. de la Peña·Andrzej Skowroński
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Abstract

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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Piotr Malicki, José A. de la Peña, Andrzej Skowroński. 2013-02-11. On the number of terms in the middle of almost split sequences over cycle-finite artin algebras. https://doi.org/10.2478/s11533-013-0328-3

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