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Functorial filtrations for homotopy categories of some generalisations of gentle algebras

2016/08/30 by Bennett-Tennenhaus, Raphael
#16D70 (primary) #16E35 (secondary) #16G20 #FOS: Mathematics #Representation Theory (math.RT)

paper · doi:10.48550/arxiv.1608.08514

Abstract

We consider algebras defined over a complete, local and noetherian ground ring. They are gentle algebras in case the ground ring is a field. The unbounded homotopy category of complexes of projective modules is considered. Complexes with finitely-generated homogeneous components are shown to be isomorphic to direct sums of indecomposable string and band complexes. The corresponding isoclasses are described, and the Krull-Remak-Schmidt-Azumaya property is verified. This classification problem is solved using the idea of functorial filtrations.

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