Zobrazeno 1 - 10 of 56 pro vyhledávání: '"Matteo Varbaro"'
1
Akademický článek
Graded Betti numbers of ideals with linear quotient
Autor: Leila Sharifan, Matteo Varbaro
Publikováno v: Le Matematiche, Vol 63, Iss 2, Pp 257-265 (2008)
In this paper we show that every ideal with linear quotients is componentwise linear. We also generalize the Eliahou-Kervaire formula for graded Betti numbers of stable ideals to homogeneous ideals with linear quotients.
Externí odkaz: https://doaj.org/article/dde781159da9413da5fadb32cb528cb7
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2
Akademický článek
Dimension, depth and zero-divisors of the algebra of basic k-covers of a graph
Autor: Bruno Benedetti, Alexandru Constatinescu, Matteo Varbaro
Publikováno v: Le Matematiche, Vol 63, Iss 2, Pp 117-156 (2008)
We study the basic k-covers of a bipartite graph G; the algebra A(G) they span, first studied by Herzog, is the fiber cone of the Alexander dual of the edge ideal. We characterize when A(G) is a domain in terms of the combinatorics of G; it follows f
Externí odkaz: https://doaj.org/article/8269dab170a949818836f3530322020f
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4
Singularities and radical initial ideals
Autor: Alexandru Constantinescu, Matteo Varbaro, Emanuela De Negri
Publikováno v: Bulletin of the London Mathematical Society. 52:674-686
What kind of reduced monomial schemes can be obtained as a Gr\"obner degeneration of a smooth projective variety? Our conjectured answer is: only Stanley-Reisner schemes associated to acyclic Cohen-Macaulay simplicial complexes. This would imply, in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e71677b69a336e95581213e1838d22a0
https://doi.org/10.1112/blms.12358
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