Artin Algebras with Loops but no Outer Derivations

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dc.creatorBuchweitz, R. -O.
dc.creatorLiu, S.
dc.date1999-07-01
dc.date.accessioned2026-07-07T05:29:45Z
dc.date.available2026-07-07T05:29:45Z
dc.descriptionWe construct Artin algebras with vanishing first Hochschild Cohomology but a loop in their ordinary quiver. Some authors guessed earlier that such examples could not exist.
dc.description12 pages
dc.identifierhttps://arxiv.org/abs/math/9907008
dc.identifierhttp://arxiv.org/abs/math/9907008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/78762
dc.subjectRings and Algebras
dc.subjectRepresentation Theory
dc.subject16E40; 16G60
dc.titleArtin Algebras with Loops but no Outer Derivations
dc.typetext

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