Aldo Conca, Giuseppe Valla
Abstract
In this paper we consider homogeneous Gorenstein ideals of codimension three in a polynomial ring and determine their graded Betti numbers in terms of their Hilbert function. For such ideals we prove also a lifting theorem in the vein of a classical result of Hartshorne concerning monomial ideals.
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In this paper we consider homogeneous Gorenstein ideals of codimension three in a polynomial ring and determine their graded Betti numbers in terms of their Hilbert function. For such ideals we prove also a lifting theorem in the vein of a classical result of Hartshorne concerning monomial ideals.
Key concepts: Codimension, Mathematics, Betti number, Polynomial ring, Monomial, Pure mathematics, Hilbert series and Hilbert polynomial, Monomial ideal