ÁLGEBRA

2008

1. A van Kampen theorem for equivariant fundamental groupoids

   Journal of Pure and Applied Algebra, Vol. 212, Núm. 9, pp. 2059-2068

2. Equivalent proportionally modular Diophantine inequalities

   Archiv der Mathematik, Vol. 90, Núm. 1, pp. 24-30

3. Every numerical semigroup is one half of a symmetric numerical semigroup

   Proceedings of the American Mathematical Society, Vol. 136, Núm. 2, pp. 475-477

4. Every numerical semigroup is one half of infinitely many symmetric numerical semigroups

   Communications in Algebra, Vol. 36, Núm. 8, pp. 2910-2916

5. Families of numerical semigroups closed under finite intersections and for the frobenius number

   Houston Journal of Mathematics, Vol. 34, Núm. 2, pp. 339-348

6. Modular diophantine inequalities and rotations of numerical semigroups

   Journal of the Australian Mathematical Society, Vol. 84, Núm. 3, pp. 315-328

7. Numerical semigroups having a toms decomposition

   Canadian Mathematical Bulletin, Vol. 51, Núm. 1, pp. 134-139

8. Numerical semigroups that differ from a symmetric numerical semigroup in one element

   Algebra Colloquium, Vol. 15, Núm. 1, pp. 23-32

9. Numerical semigroups with many gaps of the same parity

   Semigroup Forum, Vol. 77, Núm. 2, pp. 267-278

10. On iterated twisted tensor products of algebras

    International Journal of Mathematics, Vol. 19, Núm. 9, pp. 1053-1101

11. One half of a pseudo-symmetric numerical semigroup

    Bulletin of the London Mathematical Society, Vol. 40, Núm. 2, pp. 347-352

12. Prime Path Coalgebras

    ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, Vol. 33, Núm. 2C, pp. 273-283

13. Prime path coalgebras

    Arabian Journal for Science and Engineering, Vol. 33, Núm. 2 C, pp. 273-284

14. Serial coalgebras and their valued Gabriel quivers

    Journal of Algebra, Vol. 319, Núm. 12, pp. 5039-5059

15. Strongly taut finitely generated monoids

    Monatshefte fur Mathematik, Vol. 155, Núm. 2, pp. 119-124

16. Symmetric proportionally modular diophantine inequalities

    Publicationes Mathematicae, Vol. 73, Núm. 1-2, pp. 133-144

17. Systems of proportionally modular Diophantine inequalities

    Semigroup Forum, Vol. 76, Núm. 3, pp. 469-488

18. The Bonnet problem for surfaces in homogeneous 3-manifolds

    Communications in Analysis and Geometry, Vol. 16, Núm. 5, pp. 907-935

19. The set of solutions of a proportionally modular Diophantine inequality

    Journal of Number Theory, Vol. 128, Núm. 3, pp. 453-467

20. The smallest positive integer that is solution of a proportionally modular diophantine inequality

    Mathematical Inequalities and Applications, Vol. 11, Núm. 2, pp. 203-212