Titlebook: Numerical Semigroups; IMNS 2018 Valentina Barucci,Scott Chapman,Ralf Fr?berg Book 2020 The Editor(s) (if applicable) and The Author(s), und

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Felix Gotti. annelé est déjá suggérée dans les exposés de A. Grothendieck au Séminaire Cartan de 1960/61, exposés no 7 á 17. La question soulevée alors était la suivante: certains problémes de modules de la théorie des schémas gardent un sens une fois reformulés dans la catégorie des espces annelés en anneaux

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Syzygies of Numerical Semigroup Rings, a Survey Through Examples,e resolution is explicitly given: Gorenstein semigroups of embedding dimension 4 that are not a complete intersection and semigroups generated by a sequence of integers in arithmetic progression. Finally, we describe how the resolution is constructed when the semigroup is obtained by gluing of two n

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On the Molecules of Numerical Semigroups, Puiseux Monoids, and Puiseux Algebras,., atoms). Here we study the molecules of Puiseux monoids as well as the molecules of their corresponding semigroup algebras, which we call Puiseux algebras. We begin by presenting, in the context of numerical semigroups, some results on the possible cardinalities of the sets of molecules and the se

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,On Multi-Index Filtrations Associated to Weierstra? Semigroups, fields, with special emphasis on the case of two points. Some hints about the usage of some packages of the computer algebra software . are also given; these are however only valid for curves defined over . with . a prime number.