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Decompositions of degenerations

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Abstract:

We develop a method to refine a given degeneration of modules. This enables us to give a new proof of the equivalence of the partial orders ≤deg and ≤ext in the case that the algebra Λ has a directed Auslander–Reiten quiver.

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  1. Mathematisches Institut, Universität Bern, Sidlerstrasse 5, 3012 Bern, Switzerland. e-mail: aehle@math-stat.unibe.ch, , , , , , CH

    Robert Aehle

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  1. Robert Aehle
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Received: 11 November 1999

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Aehle, R. Decompositions of degenerations. manuscripta math. 102, 169–176 (2000). https://doi.org/10.1007/s002291020169

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  • DOI: https://doi.org/10.1007/s002291020169

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