Under a strong-source or strong-sink condition on maximal forbidden paths, gentle algebras satisfy hb.dim A ≤ 2·gl.dim A − 1 (or 2·f.dim A − 1), yielding a new quasi-tilted criterion when gl.dim A = 2.
Homological conditions on locally gentle algebras
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abstract
Gentle algebras are a class of special biserial algebra whose representation theory has been thoroughly described. In this paper, we consider the infinite dimensional generalizations of gentle algebras, referred to as locally gentle algebras. We give combinatorial descriptions of the center, prime spectrum, and homological dimensions of a locally gentle algebra, including an explicit injective resolution. We classify when these algebras are Artin-Schelter Gorenstein, Artin-Schelter regular, and Cohen-Macaulay, and provide an analogue of Stanley's theorem for locally gentle algebras.
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Homological Bounds of Gentle algebras
Under a strong-source or strong-sink condition on maximal forbidden paths, gentle algebras satisfy hb.dim A ≤ 2·gl.dim A − 1 (or 2·f.dim A − 1), yielding a new quasi-tilted criterion when gl.dim A = 2.