Publications
Hopf Bifurcation with D_n-symmetry. Glasgow Mathematical Journal. 2006;48:41-51.
Spectrum of the elimination of loops and multiple arrows in coupled cell networks. Nonlinearity. 2012;25:3139-3154.Edit
Secondary bifurcations in systems with All-to-All coupling. Proceedings of the Royal Society of London Ser. A . 2003;459:1-18.Edit
Symmetry-breaking Bifurcations of Wreath Product Systems. Journal of Nonlinear Science . 1999;9:671-695.Edit
The concept of Metal-Insulator-Metal nanostructures as Adaptive Neural Networks. U. Porto Journal of Engineering. 2017;3:1-10.Edit
Heteroclinic Cycles and Wreath Product Symmetries. Dynamics and Stability of Sytems. 2000;15:353-385.Edit
Secondary Bifurcations in Systems with All-to-All Coupling. Part II. Dynamical Systems. 2006;21:439-463.Edit
On the Frobenius number of a proportionally modular Diophantine inequality. Port. Math. (N.S.). 2006;63:415-425.Edit
[2017-23] Intersection problem for Droms RAAGs .Edit
On iterated Mal'cev products with a pseudovariety of groups. Internat. J. Algebra Comput.. 2011;21:1285-1304.Edit
Systems of proportionally modular Diophantine inequalities. Semigroup Forum. 2008;76:469-488.Edit
On the generalized Feng-Rao numbers of numerical semigroups generated by intervals. Math. Comp.. 2013;82:1813-1836.Edit
Solvable monoids with commuting idempotents. Internat. J. Algebra Comput.. 2005;15:547-570.Edit
[2005-44] Solving systems of equations modulo pseudovarieties of abelian groups and hyperdecidability .Edit
Modular Diophantine inequalities and rotations of numerical semigroups. J. Aust. Math. Soc.. 2008;84:315-328.Edit
A polynomial time algorithm to compute the abelian kernel of a finite monoid. Semigroup Forum. 2003;67:97-110.Edit
$\ssfnumericalsgps$, a $\ssfGAP$ package for numerical semigroups. ACM Commun. Comput. Algebra. 2016;50:12-24.Edit
Rees quotients of numerical semigroups. Port. Math.. 2013;70:93-112.Edit
Abelian kernels of monoids of order-preserving maps and of some of its extensions. Semigroup Forum. 2004;68:335-356.Edit
Numerical semigroups with a given set of pseudo-Frobenius numbers. LMS Journal of Computation and Mathematics. 2016;19(1):186-205.Edit