We prove an explicit formula for the number of star operations on numerical semigroups of multiplicity 3 in terms of the generators of the semigroup. We also estimate the number of semigroups of multiplicity 3 with exactly star operations.
Star operations on numerical semigroups: the multiplicity 3 case
Dario Spirito
2014-01-01
Abstract
We prove an explicit formula for the number of star operations on numerical semigroups of multiplicity 3 in terms of the generators of the semigroup. We also estimate the number of semigroups of multiplicity 3 with exactly star operations.File in questo prodotto:
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