
doi: 10.1007/bf01303625
The paper concerns itself with generating sets for monomial Gorenstein ideals in polynomial rings k[x1,..., xr], k an arbitrary field. For r=5 it is shown that for a certain class of these ideals, the number of generators is bounded by 13. To establish the sharpness of this bound an algorithm is established, to obtain all numerical symmetric semigroups with a fixed odd integer 2n+1 as last integer unattained. Finally, a short proof of the known fact is given, that for r=4 the number of elements in a generating set is 3 or 5.
polynomial ring, Special algebraic curves and curves of low genus, Free semigroups, generators and relations, word problems, Special types (Cohen-Macaulay, Gorenstein, Buchsbaum, etc.), Singularities in algebraic geometry, generating sets for monomial Gorenstein ideals, Commutative rings defined by factorization properties (e.g., atomic, factorial, half-factorial), Polynomial rings and ideals; rings of integer-valued polynomials, Commutative rings and modules of finite generation or presentation; number of generators, minimal number of generators, Varieties defined by ring conditions (factorial, Cohen-Macaulay, seminormal), monomial Gorenstein ideal, monomial curve, semigroups of integers
polynomial ring, Special algebraic curves and curves of low genus, Free semigroups, generators and relations, word problems, Special types (Cohen-Macaulay, Gorenstein, Buchsbaum, etc.), Singularities in algebraic geometry, generating sets for monomial Gorenstein ideals, Commutative rings defined by factorization properties (e.g., atomic, factorial, half-factorial), Polynomial rings and ideals; rings of integer-valued polynomials, Commutative rings and modules of finite generation or presentation; number of generators, minimal number of generators, Varieties defined by ring conditions (factorial, Cohen-Macaulay, seminormal), monomial Gorenstein ideal, monomial curve, semigroups of integers
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