Papers in International Journals

• Araújo, João; Kinyon, M.; Malheiro, António (2013) A characterization of adequate semigroups by forbidden subsemigroups Proceedings of the Royal Society of Edinburgh Series A: 143(6), 1115-1122.

• Colaco, Marcelo J.; Alves, Carlos J. S. (2013) A Fast Non-Intrusive Method for Estimating Spatial Thermal Contact Conductance by Means of the Reciprocity Functional Approach and the Method of Fundamental Solutions International Journal of Heat and Mass Transfer: 60, 653-663.

• Nguyen Ngoc Hai; An, P. T.  (2013) A Generalization of Blaschke's Convergence Theorem in Metric Spaces Journal of Convex Analysis: 20(4), 1013-1024.

• Martins, Nuno F. M.; Rebelo, Magda (2013) A Meshfree Method for Elasticity Problems with Interfaces Applied Mathematics and Computation: 219(22), 10732-10745.

• Gudiño, Elias; Ferreira, José A.; De Oliveira, Paula (2013) A second order approximation for quasilinear non-Fickian diffusion models Computational Methods in Applied Mathematics: 13(4), 471-493.

• Ferreira, Marta (2013) A study of exponential-type tails applied to Birnbaum-Saunders models Chilean Statistical Society: 4(1), 91-101.

• Fasano, Antonio; Pavlova, Jevgenija; Sequeira, Adélia (2013) A Synthetic Model for Blood Coagulation Including Blood Slip at the Vessel Wall Clinical Hemorheology and Microcirculation: 54(1), 1-14.

• Kulikov, Gennady Yu (2013) Adaptive Nordsieck Formulas with Advanced Global Error Control Mechanisms Russian Journal of Numerical Analysis and Mathematical Modelling: 28(4), 321-352.

• Couceiro, Miguel; Lehtonen, Erkko; Waldhauser, Tamás (2013) Additive decomposability of functions over abelian groups International Journal of Algebra and Computation: 23, 643-662.

• An, P. T. ; Trang, L. H. (2013) An Efficient Convex Hull Algorithm for Finite Point Sets in 3D Based on the Method of Orienting Curves Optimization: A Journal of Mathematical Programming and Operations Research: 62(7), 975-988.

• Morgado, M. Luísa; Ford, N. J.; Lima, Pedro M. (2013) Analysis and Numerical Methods for Fractional Differential Equations with Delay Journal of Computational and Applied Mathematics: 252, 159-168.

• Diogo, Teresa; Vainikko, G. (2013) Applicability of spline collocation to Cordial Volterra equations Mathematical Modelling and Analysis: 18(1), 1-21.

• Nazarov, S. A.; Taskinen, J.; Videman, J. H. (2013) Asymptotic Behavior of Trapped Modes in Two-Layer Fluids Wave Motion: 50(2), 111-126.

• Antunes, Pedro R. S.; Freitas, Pedro; Kennedy, James B. (2013) Asymptotic behaviour and numerical approximation of optimal eigenvalues of the Robin Laplacian ESAIM: Control, Optimisation and Calculus of Variations: 19, 438-459.

• Bleak, Collin; Bowman, Hannah; Gordon, Alison; Graham, Garrett; Hughes, Jacob; Matucci, Francesco; Sapir, Eugenia (2013) Centralizers in R.Thompson's group V_n Groups, Geometry and Dynamics: 7(4), 821–865.

• Araújo, João; Konieczny, Janusz (2013) Centralizers in the Full Transformation Semigroup Semigroup forum: 86(1), 1-31.

• Kulikov, Gennady Yu (2013) Cheap global error estimation in some Runge-Kutta pairs IMA Journal of Numerical Analysis: 33(1), 136-163.

• Saberi-Nadjafi, J.; Mehrabinezhad, M.; Diogo, Teresa (2013) Coiflet-Galerkin method for linear Volterra integral equations Applied Mathematics and Computation: 221, 469-483.

• Martins, Andre; Leitao, Joao Paulo; Amado, Conceição (2013) Comparative Study of Three Stochastic Models for Prediction of Pipe Failures in Water Supply Systems Journal of Infrastructure Systems: 19(4), 442-450.

• Antunes, Pedro R. S.; Gazzola, Filippo (2013) Convex shape optimization for the least biharmonic Steklov eigenvalue ESAIM: Control, Optimisation and Calculus of Variations: 19, 385-403.

• Agarwal, R.P.; Bohner, M.; Ferreira, J.M.; Pinelas, Sandra (2013) Delay difference equations: coexistence of oscillatory and nonoscillatory solutions Analysis: 33, 333-348.

• Hastermann, G.; Lima, Pedro M.; Morgado, M. Luísa; Weinmüller, E.B. (2013) Density profile equation with p-Laplacian: analysis and numerical simulation Applied Mathematics and Computation: 225, 550-561.

• An, P. T. ; Hai, N. N.; Hoai, T. V. (2013) Direct Multiple Shooting Method for Solving Approximate Shortest Path Problems Journal of Computational and Applied Mathematics: 244, 67-76.

• Carmona, René; Coulon, Michael; Schwarz, Daniel (2013) Electricity Price Modeling and Asset Valuation: a Multi-Fuel Structural Approach Mathematics and Financial Economics: 7(2), 167-202.

• Sebastião, J.R.; Martins, A.P.; Pereira, L.; Ferreira, Helena (2013) Estimating the upcrossings index TEST: 22(4), 549-579.

• Ferreira, Marta (2013) Extremal (in)dependence of a maximum autoregressive process Discussiones Mathematicae. Probability and Statistics: 33(1-2), 47-64.

• Guterman, Alexander; Lemos, Rute; Soares, Graça (2013) Extremal Case in Marcus-Oliveira Conjecture and Beyond Linear & Multilinear Algebra: 61(9), 1206-1222.

• Scotto, Manuel; Barbosa, Susana M. ; Alonso, Andrés M. (2013) Extreme-based clustering of environmental time series Boletín de Estadística e Investigación Operativa: 29, 92-102.

• Ferreira, Marta; Ferreira, Helena (2013) Extremes of multivariate ARMAX processes TEST: 22(4), 606-627.

• Hady, F.M.; Mohamed, R.A.; Elshehabey, Hillal M. (2013) Flow and Mass Transfer of Second Grade Fluid in a Porous Medium Over a Nonlinear Stretching Sheet with Chemically Reactive Species and Suction Journal of Computational and Theoretical Nanoscience,: 10(11), 2796-2803.

• Diogo, Teresa; Ma, Jingtang; Rebelo, Magda (2013) Fully Discretized Collocation Methods for Nonlinear Singular Volterra Integral Equations Journal of Computational and Applied Mathematics: 247, 84-101.

• Araújo, João; Bentz, Wolfram; Cameron, Peter (2013) Groups synchronizing a transformation of non-uniform kernel Theoretical Computer Science: 498, 1--9.

• Javad Hatami; Tafazzoli-Shadpour, M.; Haghighipour, N.; Shokrgozar, M.A. (2013) Influence of Cyclic Stretch on Mechanical Properties of Endothelial Cells Experimental Mechanics: 53(8), 1291-1298.

• Kulikova, Maria; Pacheco, António (2013) Kalman Filter Sensitivity Evaluation with Orthogonal and J-Orthogonal Transformations IEEE Transactions on Automatic Control: 58(7), 1798-1804.

• Silva, Telma; Sequeira, Adélia; Santos, Rafael F.; Tiago, Jorge (2013) Mathematical modeling of atherosclerotic plaque formation coupled with a non-Newtonian model of blood flow Conference Papers in Mathematics: 2013, 405914.

• Martins, Rachel (2013) Non-commutative fermion mass matrix and gravity International journal of modern physics A: 28(25), 1350120.

• Ferreira, Marta (2013) Nonparametric estimation of the tail-dependence coefficient REVSTAT – Statistical Journal: 11(1), 1-16.

• Ford, N.; Morgado, M. Luísa; Rebelo, Magda (2013) Nonpolynomial collocation approximation of solutions to fractional differential equations Fractional Calculus and Applied Analysis: 16(4), 874-891.

• Lima, Pedro M.; Nemati, S.; Ordokhani, Y. (2013) Numerical solution of a class of two-dimensional nonlinear Volterra integral equations using Legendre polynomials Journal of Computational and Applied Mathematics: 242, 53-69.

• Koplatadze, R. ; Pinelas, Sandra (2013) On oscillations of solutions of second order nonlinear difference equations Journal of Mathematical Sciences: 189(5), 784-794.

• Antunes, Pedro R. S.; Henrot, Antoine (2013) On the range of the first two Dirichlet eigenvalues of the Laplacian with volume and perimeter constraint Publ. RIMS, Kyoto University: 1850, 66-78.

• Ferreira, Marta (2013) On the tail index estimation of an autoregressive pareto process Discussiones Mathematicae. Probability and Statistics: 33(1-2), 65-78.

• Antunes, Pedro R. S.; Freitas, Pedro (2013) Optimal spectral rectangles and lattice ellipses Proceedings of the Royal Society A: 469, 2012-0492.

• Antunes, Pedro R. S. (2013) Optimization of sums and quotients of Dirichlet-Laplacian eigenvalues Applied Mathematics and Computation: 219, 4239-4254.

• Thandapani, E.; Padmavathi, S; Pinelas, Sandra (2013) Oscillation Criteria For Even Order Nonlinear Neutral Differential Equations With Mixed Arguments Journal of Advances in Mathematics: 5, 575-589.

• Grace, S.R.; Pinelas, Sandra; Agarwal, R.P. (2013) Oscillation criteria for n-th order nonlinear dynamic equations on time-scales Journal of the Indian Mathematical Society: 80(1-2), 79-85.

• Chatzarakis, G. E.; Pinelas, Sandra; Stavroulakis, I. P. (2013) Oscillations of Difference Equations with Several Deviated Arguments Aequationes Mathematicea: 88(1-2), 105-123.

• Couceiro, Miguel; Lehtonen, Erkko; Waldhauser, Tamás (2013) Parametrized arity gap Order: 30, 557-572.

• Reis, P.; Canto e Castro, L.; Dias, Sandra; Gomes, M. I. (2013) Penultimate Approximations in Statistics of Extremes and Reliability of Large Coherent Systems Methodology and Computing in Applied Probability.

• Antunes, Nelson; Jacinto, G.; Pacheco, António (2013) Probing a M/G/1 queue with general input and service times ACM SIGMETRICS Performance Evaluation Review: 41(3), 34-36.