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Your search keyword '"Pedro A. García-Sánchez"' showing total 5 results
Start Over Author "Pedro A. García-Sánchez" Journal communications in algebra
5 results on '"Pedro A. García-Sánchez"'

1. Constructing Almost Symmetric Numerical Semigroups from Irreducible Numerical Semigroups

Author

José Carlos Rosales and Pedro A. García-Sánchez

Subjects
Discrete mathematics, Cancellative semigroup, Algebra and Number Theory, Mathematics::Operator Algebras, Semigroup, Numerical semigroup, Genus (mathematics), Bicyclic semigroup, Special classes of semigroups, Computer Science::Databases, Mathematics
Abstract

Every almost symmetric numerical semigroup can be constructed by removing some minimal generators from an irreducible numerical semigroup with its same Frobenius number.

Published
2013

2. Every Numerical Semigroup is One Half of Infinitely Many Symmetric Numerical Semigroups

Author

Pedro A. García-Sánchez and José Carlos Rosales

Subjects
Discrete mathematics, Cancellative semigroup, One half, Algebra and Number Theory, Mathematics::Operator Algebras, Semigroup, Numerical semigroup, Bicyclic semigroup, Mathematics::Metric Geometry, Special classes of semigroups, Mathematics
Abstract

Let S be a numerical semigroup. Then there exist infinitely many symmetric numerical semigroups such that . We give an explicit description of them.

Published
2008

3. On The structure of cohen-macaulay simplical affine semigroups

Author

Pedro A. García-Sánchez and José Carlos Rosales

Subjects
Combinatorics, Affine geometry, Affine coordinate system, Algebra and Number Theory, Mathematics::Commutative Algebra, Affine geometry of curves, Affine representation, Affine hull, Affine group, Affine transformation, Affine plane, Mathematics
Abstract

We show that the structure of a Cohen-Macaulay simplicial affine semi-group depends on a finite abelian group and a map satisfying five properties.

Published
1999

4. On Cohen-Macaulay subsemigroups of N2

Author

Pedro A. García-Sánchez, José Carlos Rosales, and J.M. Urbano-Blanco

Subjects
Pure mathematics, Algebra and Number Theory, Mathematics
Published
1998

5. On complete intersection affine semigroups

Author

José Carlos Rosales and Pedro A. García-Sánchez

Subjects
Combinatorics, Algebra and Number Theory, Affine hull, Complete intersection, Affine transformation, Finite intersection property, Intersection graph, Mathematics
Published
1995

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