A C-semigroup (respectively a D-semigroup) is a positioned numerical semigroup S such that g(S) = F(S)+m(S)-1/2 (respectively g(S) = F(S)+m(S)-2/2 ). In this paper we study these semigroups giving formulas for the Frobenius number, pseudo-Frobenius number, and type. Furthermore, we give algorithms for computing the whole set of C-semigroups and D-semigroups.
机构:
Univ Cadiz, Dept Math, Poligono Rio San Pedro S-N, Puerto Real 11510, Cadiz, SpainUniv Cadiz, Dept Math, Poligono Rio San Pedro S-N, Puerto Real 11510, Cadiz, Spain
Moreno-Frias, M. A.
Rosales, J. C.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Granada, Dept Algebra, Ave Fuente Nueva, Granada 18071, Granada, SpainUniv Cadiz, Dept Math, Poligono Rio San Pedro S-N, Puerto Real 11510, Cadiz, Spain