Degenerations in a class of matrix varieties and prinjective modules

DOI10.1016/S0021-8693(03)00173-XzbMath1022.16007MaRDI QIDQ1812167

Justyna Kosakowska

Publication date: 18 June 2003

Published in: Journal of Algebra (Search for Journal in Brave)

zbMATH Keywords

group actionspartially ordered setsfinite representation typeincidence algebrasprinjective modulesTits quadratic formsbipartitioned matricesdegenerations of orbitsirreducible affine varieties

Mathematics Subject Classification ID

Group actions on varieties or schemes (quotients) (14L30) Representations of quivers and partially ordered sets (16G20) Ext and Tor, generalizations, Künneth formula (category-theoretic aspects) (18G15) Multilinear algebra, tensor calculus (15A69) Group actions on affine varieties (14R20) Canonical forms, reductions, classification (15A21)

Related Items

Prinjective Ringel-Hall algebras for posets of finite prinjective type. ⋮ Generic extensions of prinjective modules ⋮ The boundary of the irreducible components for invariant subspace varieties ⋮ Operations on arc diagrams and degenerations for invariant subspaces of linear operators

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