Representations of Algebras and Related Topics
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Finite dimensional modules (or representations of quivers) form affine varieties equipped with algebraic group actions, such that the orbits correspond bijectively to the isomorphism classes of modules. The Zariski-closures of orbits are the objects of our interest. We study their geometric properties and relate them to properties of the corresponding modules.
Keywords: Modules, representations, orbit closures, singularities