Deformations of Algebras and Cohomology of Fixed Point Sets.
Volker Puppe (1979/80)
Manuscripta mathematica
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Volker Puppe (1979/80)
Manuscripta mathematica
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Theodore Chang (1976)
Manuscripta mathematica
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Deena Al-Kadi (2010)
Colloquium Mathematicae
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We study the second Hochschild cohomology group of the preprojective algebra of type D₄ over an algebraically closed field K of characteristic 2. We also calculate the second Hochschild cohomology group of a non-standard algebra which arises as a socle deformation of this preprojective algebra and so show that the two algebras are not derived equivalent. This answers a question raised by Holm and Skowroński.
E.L. Green, D. Zacharia (1994)
Manuscripta mathematica
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J.-H. Eschenburg (1992)
Manuscripta mathematica
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Christoff Geiss, José A. de de Pena (1995)
Manuscripta mathematica
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Helmut Strade, Jörg Feldvoss (1992)
Manuscripta mathematica
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Jaume Aguadé (1981)
Mathematische Zeitschrift
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Rolf Farnsteiner (1991)
Mathematische Zeitschrift
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Robin Hartshorne (1972)
Manuscripta mathematica
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Urs Würgler (1979)
Manuscripta mathematica
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Douglas C. Ravenel (1976/77)
Mathematische Zeitschrift
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Piotr Malicki, Andrzej Skowroński (2014)
Colloquium Mathematicae
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We determine the Hochschild cohomology of all finite-dimensional generalized multicoil algebras over an algebraically closed field, which are the algebras for which the Auslander-Reiten quiver admits a separating family of almost cyclic coherent components. In particular, the analytically rigid generalized multicoil algebras are described.
Jens P. Nielsen (1980)
Mathematica Scandinavica
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Generalov, A.I. (2004)
Zapiski Nauchnykh Seminarov POMI
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