A counterexample to Raikov's conjecture

DOI10.1112/blms/bdn080zbMath1210.18010OpenAlexW2054703180WikidataQ122918546 ScholiaQ122918546MaRDI QIDQ5504107

Wolfgang Rump

Publication date: 21 January 2009

Published in: Bulletin of the London Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1112/blms/bdn080

zbMATH Keywords

homological algebraquasi-abelian categorieshigher Ext-groupsRaikov's conjecture

Mathematics Subject Classification ID

Module categories in associative algebras (16D90) Auslander-Reiten sequences (almost split sequences) and Auslander-Reiten quivers (16G70) Representations of associative Artinian rings (16G10) Abelian categories, Grothendieck categories (18E10) Relative homological algebra, projective classes (category-theoretic aspects) (18G25)

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