Establishes equivalence between τ-regularity and maximal-rank minimal projective presentations, classifies generically τ-regular components for triangular algebras, and shows hereditary algebras are precisely those with all components generically τ-regular.
Kac, Infinite root systems, representations of graphs and invariant theory
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Generically $\tau$-regular irreducible components of module varieties
Establishes equivalence between τ-regularity and maximal-rank minimal projective presentations, classifies generically τ-regular components for triangular algebras, and shows hereditary algebras are precisely those with all components generically τ-regular.