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Orateur(s) Steffen OPPERMANN - Trondheim,
Titre On higher Auslander-Reiten components
Date04/05/2018
Horaire15:30 à 16:30
Diffusion
RésumeThis talk is based on joint work with \href{http://www2.math.uu.se/~martinh/}{Martin Herschend}. In classical Auslander-Reiten theory, one first defines almost split sequence, and subsequently arranges them into AR components. In higher dimensional Auslander-Reiten theory the notion of almost split sequences depends on the choice of a rigid (hence discrete) subcategory. In this setup, we suggest an axiomatic definition of AR components, and explore examples and properties.
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