Publications
Three Dimensional Flows: From Hyperbolicity to Quasi-Stochasticity. In: Dynamics, Games and Science. Vol Dynamics, Games and Science, . Lisbon, Portugal: Springer ; 2015. 5. p. 573-591p. Edit
Spiralling dynamics near a heteroclinic network. Physica D. 2014.Edit
Moduli for heteroclinic connections involving saddle-foci and periodic solutions. Disc. Cont. Dyn. Systems A. 2015;35(7):3155-3182.Edit
A chaotic carousel: dynamics near heteroclinic networks. Bol. Soc. Port. Mat.. 2010:103-109.Edit
Operational calculus for Bessel's fractional equation. In: Advances in harmonic analysis and operator theory. Vol 229. Birkhäuser/Springer Basel AG, Basel; 2013. 3. p. 357-370p. (Oper. Theory Adv. Appl.; vol 229).Edit
[2009-46] Chaotic Double Cycling .
Eigenvalue computations in the context of data-sparse approximations of integral operators. Journal of Computational and Applied Mathematics. 2013;237:171-181.Edit
Harnessing GPU Power from High-level Libraries: Eigenvalues of Integral Operators with SLEPc. Procedia Computer Science. 2013;18:2591-2594.Edit
A Parallel Implementation of the Jacobi-Davidson Eigensolver for Unsymmetric Matrices. In: Palma JMLaginha, Daydé M, Marques O, Lopes JCorreia, editors. High Performance Computing for Computational Science – VECPAR 2010: 9th International conference, Berkeley, CA, USA, June 22-25, 2010, Revised Selected Papers. Vol 6449. Springer Berlin Heidelberg; 2011. 3. p. 380-393p. (Lecture Notes in Computer Science; vol 6449).Edit
On presentations of commutative monoids. Internat. J. Algebra Comput.. 1999;9:539-553.Edit
Nonnegative elements of subgroups of $\bf Z^n$. Linear Algebra Appl.. 1998;270:351-357.Edit
Numerical semigroups with maximal embedding dimension [\refcno 2056070]. In: Focus on commutative rings research. Nova Sci. Publ., New York; 2006. 4. p. 47-53p. Edit
Fundamental gaps in numerical semigroups with respect to their multiplicity. Acta Math. Sin. (Engl. Ser.). 2004;20:629-646.Edit
Constructing almost symmetric numerical semigroups from irreducible numerical semigroups. Comm. Algebra. 2014;42:1362-1367.Edit
Ideals of finitely generated commutative monoids. Semigroup Forum. 2003;66:305-322.Edit
How to check if a finitely generated commutative monoid is a principal ideal commutative monoid. In: Proceedings of the 2000 International Symposium on Symbolic and Algebraic Computation (St. Andrews). ACM, New York; 2000. 2. p. 288-291p. (electronic).Edit
On the structure of Cohen-Macaulay simplicial affine semigroups. Comm. Algebra. 1999;27:511-518.Edit
Numerical semigroups with a monotonic Apéry set. Czechoslovak Math. J.. 2005;55(130):755-772.Edit
Every positive integer is the Frobenius number of a numerical semigroup with three generators. Math. Scand.. 2004;94:5-12.Edit
Presentations for subsemigroups of finitely generated commutative semigroups. Israel J. Math.. 1999;113:269-283.Edit
On numerical semigroups with high embedding dimension. J. Algebra. 1998;203:567-578.Edit
Every numerical semigroup is one half of a symmetric numerical semigroup. Proc. Amer. Math. Soc.. 2008;136:475-477 (electronic).Edit
The oversemigroups of a numerical semigroup. Semigroup Forum. 2003;67:145-158.Edit