Noncommutative deformations of modules.

Laudal, O.A.

Displaying similar documents to “Noncommutative deformations of modules.”

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Paoli, Simona (2003)

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Some results on central extensions of crossed modules.

Vieites, A.M., Casas, J.M. (2002)

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Homomorphisms and extensions of principal series representations.

Stroppel, Catharina (2003)

Journal of Lie Theory

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Componentwise injective models of functors to DGAs

Marek Golasiński (1997)

Colloquium Mathematicae

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The aim of this paper is to present a starting point for proving existence of injective minimal models (cf. [8]) for some systems of complete differential graded algebras.

Crossed extensions of algebras and Hochschild cohomology.

Baues, Hans-Joachim, Minian, Elias Gabriel (2002)

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Partial flag varieties and preprojective algebras

Christof Geiß, Bernard Leclerc, Jan Schröer (2008)

Annales de l’institut Fourier

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Let $Λ$ be a preprojective algebra of type $A, D, E$ , and let $G$ be the corresponding semisimple simply connected complex algebraic group. We study rigid modules in subcategories $Sub Q$ for $Q$ an injective $Λ$ -module, and we introduce a mutation operation between complete rigid modules in $Sub Q$ . This yields cluster algebra structures on the coordinate rings of the partial flag varieties attached to $G$ .