Publications
Symmetry and bifurcation of periodic solutions in Neumann boundary value problems. Port. Math.. 2008;65:373-385.
Counting Persistent Pitchforks. Vol V International Workshop on Real and Complex Singularities São Carlos SP Brazil: CRC press 2000.Edit
The core-periphery model with three regions and more. PAPERS IN REGIONAL SCIENCE. 2012;91(2):401-418.Edit
Mixed-mode solutions in mode interaction problems with symmetry. In: Dynamics, bifurcation and symmetry ({C}argèse, 1993). Vol 437. Kluwer Acad. Publ., Dordrecht; 1994. 6. p. 69-77p.
[2005-27] Hysteresis in a tatonnement process .
A heteroclinic network in mode interaction with symmetry. Dyn. Syst.. 2010;25:359-396.Edit
Numerical solution of a PDE system with non-linear steady state conditions that translates the air stripping pollutants removal. Vol Nonlinear Science and Complexity Springer Netherlands 2011.Edit
Mode interactions with spherical symmetry. Internat. J. Bifur. Chaos Appl. Sci. Engrg.. 1994;4:885-904.
Construction of heteroclinic networks in R4. Nonlinearity. 2016;29:3677-3695.Edit
[2015-21] Switching in heteroclinic networks .Edit
Existence of a Markov perfect equilibrium in a third market model . ECONOMICS LETTERS. 2000;66:297-301.Edit
Stability in simple heteroclinic networks in R4. Dynamical Systems: an International Journal. 2014;29(4):451-481.Edit
Mode interactions with symmetry. Dynam. Stability Systems. 1995;10:13-31.
[2008-35] Graded geometry and Poisson reduction .Edit
A Routing/Assignment Problem in Garden Maintenance Services. Vol Operational Research. CIM Series in Mathematical Sciences, vol 4 Cham: Springer 2015.Edit
Routing and assignment of clients of garden maintenance services. Vol Livro de atas do XVI Congresso da Associação Portuguesa de Investigação Operacional. Instituto Politécnico de Bragança ed. Portugal, Bragança: Instituto Politécnico de Bragança 2013.Edit
The catenary and tame degree in finitely generated commutative cancellative monoids. Manuscripta Math.. 2006;120:253-264.Edit
Elements in a numerical semigroup with factorizations of the same length. Canad. Math. Bull.. 2011;54:39-43.Edit
The catenary and tame degree of numerical monoids. Forum Math.. 2009;21:117-129.Edit
Presentations of finitely generated cancellative commutative monoids and nonnegative solutions of systems of linear equations. Discrete Appl. Math.. 2006;154:1947-1959.Edit