Orador Convidado:

Prof. Manuel Branco, Departamento de Matemática e CIMA, Escola de Ciências e Tecnologia, Universidade de Évora.

Resumo:

A numerical semigroup S is positioned if for all s ∈ NS we have that F(S) + m(S) − s ∈ S. In this talk, we give algorithms to compute the set of positioned semigroups and a criterium to check whether S is or not is positioned. Furthermore, we prove the Wilf’s conjecture for this type of numerical semigroups.

Resumo (pdf):

Em anexo.