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This article is cited in 6 scientific papers (total in 6 papers)
Koszul Algebras and Their Ideals
D. I. Piontkovskii Central Economics and Mathematics Institute, RAS
Abstract:
We study associative graded algebras that have a “complete flag” of cyclic modules with linear free resolutions, i.e., algebras over which there exist cyclic Koszul modules with any possible number of relations (from zero to the
number of generators of the algebra). Commutative algebras with this property were studied in several papers by Conca and others. Here we present a noncommutative version of their construction.
We introduce and study the notion of Koszul filtration in a noncommutative algebra and examine its connections with Koszul algebras and algebras with quadratic Gröbner bases. We consider several examples, including monomial algebras, initially Koszul algebras, generic algebras, and algebras with one quadratic relation. It is shown that every algebra with a Koszul filtration has a rational Hilbert series.
Keywords:
Koszul filtration, coherent algebra, Koszul algebra, Hilbert series.
Received: 21.05.2003
Citation:
D. I. Piontkovskii, “Koszul Algebras and Their Ideals”, Funktsional. Anal. i Prilozhen., 39:2 (2005), 47–60; Funct. Anal. Appl., 39:2 (2005), 120–130
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https://www.mathnet.ru/eng/faa39https://doi.org/10.4213/faa39 https://www.mathnet.ru/eng/faa/v39/i2/p47
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