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Papers in International Journals

Araújo, João; Bentz, Wolfram; Cameron, P. J. (2018) Orbits of Primitive k-Homogenous Groups on (n?k)-Partitions with Applications to Semigroups . Transactions of the American Mathematical Society.
Tsyganova, J.V.; Kulikova, Maria (2018) SVD-based Kalman Filter Derivative Computation. IEEE Transactions on Automatic Control, (in press).
Kulikova, Maria (2017) Gradient-based parameter estimation in pairwise linear Gaussian system. IEEE Transactions on Automatic Control: 62(3), 1511-1517.
Seyedallaei, Sonia; Diogo, Teresa; Rebelo, Magda (2017) Analytical and computational methods for a class of nonlinear singular integral equations. Applied Numerical Mathematics: 114 , 2-17.
Kulikova, Maria; Kulikov, Gennady Yu (2017) NIRK-based accurate continuous-discrete extended Kalman filters for estimating continuous-time stochastic target tracking models. Journal of Computational and Applied Mathematics: 316, 260-270.
Araújo, João; Bentz, Wolfram; Joy Morris (2017) Automorphism Groups of Circulant Digraphs with Applications to Semigroup Theory. Combinatorica.
Araújo, João; Kinyon, M. (2017) Decidability and Independence of Conjugacy Problems in Finitely Presented Monoids . submitted.
Teodoro, Filomena (2017) Numerical Solution of a Delay-Advanced Differential Equation from Physiology. Applied Mathematics & Information Sciences.
Alves, Carlos J. S.; Martins, Nuno F. M.; Valtchev, Svilen S.  (2017) Extending the method of fundamental solutions to non-homogeneous elastic wave problems. Applied Numerical Mathematics: 115, 299-313.
Kulikov, Gennady Yu; Kulikova, Maria (2017) The continuous-discrete extended Kalman filter revisited. Russian Journal of Numerical Analysis and Mathematical Modelling: 32(1), 27-38.
Teodoro, Filomena; Carla Simão (2017) Perception about pediatric hypertension. Journal of Computational and Applied Mathematics: 312, 209-215.
Kulikov, Gennady Yu; Kulikova, Maria (2017) Accurate state estimation in continuous-discrete stochastic state-space systems with nonlinear or nondifferentiable observations. IEEE Transactions on Automatic Control: 43(8), 4243-4250.
Kulikov, Gennady Yu; Kulikova, Maria (2017) Accurate state estimation of stiff continuous-time stochastic models in chemical and other engineering. Mathematics and Computers in Simulation: (in press).
Teodoro, Filomena; Carla Simão (2017) Completing the Analysis of a Questionnaire about Pediatric Blood Pressure. Transactions on Biology and Biomedicine, world scientific eng. acad. soc. : 14, 56-64.
Araújo, João; Cameron, P. J.; Hulpke, A.; Lopes,P. (2017) Imprimitive Permutations in Primitive Groups . Journal of Algebra.
Diogo, Teresa; Lima, Pedro M.; Pedas, Arvet; Vainikko,Gennadi (2017) Smoothing transformation and spline collocation for weakly singular Volterra integro-differential equations. Applied Numerical Mathematics: 114 , 63–76.
Kulikov, Gennady Yu; Kulikova, Maria (2017) Square-root Kalman-like filters for estimation of stiff continuous-time stochastic systems with ill-conditioned measurements. IET Control Theory and Applications: 11(9), 1420-1425.
Alves, Carlos J. S.; Mamud, Roberto; Martins, Nuno F. M.; Roberty, Nilson C. (2017) On Inverse Problems for Characteristic Sources in Helmholtz Equations. Mathematical Problems in Engineering: 2017, ID 2472060.
Teodoro, Filomena; Carla Simão (2017) Notes about Pediatrics Hypertension Literacy. Transactions on Biology and Biomedicine, world scientific eng. acad. soc.: 14, 89-97.
Kulikova, Maria; Tsyganova, M.V. (2017) Improved discrete-time Kalman filtering within singular value decomposition. IET Control Theory and Applications , (in press).
Morais, M. C.  (2017) ARL-unbiased geometric and CCC_G control charts. Sequential Analysis.
Weiner, R ; Kulikov, Gennady Yu; Beck, S.; Brud, J. (2017) New third- and fourth-order singly diagonally implicit two-step peer triples with local and global error controls for solving stiff ordinary differential equations. Journal of Computational and Applied Mathematics: 316, 380-391.
Araújo, João; Janusz Konieczny; António Malheiro (2017) Four Notions of Conjugacy for Abstract Semigroups . Proceedings of the Royal Academy of the Edinbourgh Mathematical Society.
Teodoro, Filomena (2017) Numerical Solution of a Delay-Advanced Equation from Acoustics. International Journal of Mechanics: 11, 107-114.
Gouveia, Sónia; Scotto, Manuel; Weiss, Christian H.; Ferreira, Paulo J.S.G.  (2017) Binary autoregressive geometric modelling in a DNA context. Journal of the Royal Statistical Society, Series C: 66, 253-271.
Kulikov, Gennady Yu; Kulikova, Maria (2017) Accurate cubature and extended Kalman filtering methods for estimating continuous-time nonlinear stochastic systems with discrete measurements. Applied Numerical Mathematics: 111, 260-275.
Kulikov, Gennady Yu; Kulikova, Maria (2017) Practical implementation of extended Kalman filtering in chemical systems with sparse measurements. Russian Journal of Numerical Analysis and Mathematical Modelling: (in press).
Alves, Carlos J. S.; Valtchev, Svilen S.  (2017) On the application of the method of fundamental solutions to boundary value problems with jump discontinuities. Applied Mathematics and Computation.
Araújo, João; Peter J Cameron; Benjamin Steinberg (2017) Between primitive and $2$-transitive: Synchronization and its friends . European Mathematical Society Surveys.
Kafi, Oualid; Tiago, Jorge; Sequeira, Adélia (2017) Numerical Simulations of a 3D Fluid-Structure Interaction Model for Blood Flow in an Atherosclerotic Artery. Mathematical Biosciences and Engineering: 14, 179-193.
Araújo, João; Bentz, Wolfram; Gomes, Gracinda M. S. (2017) Congruences on Direct Products of Transformation and Matrix Monoids .  .
Kulikov, Gennady Yu; Kulikova, Maria (2017) Accurate continuous–discrete unscented Kalman filtering for estimation of nonlinear continuous-time stochastic models in radar tracking. Signal Processing: 139, 25-35.
Santos, P.; Leitão, J. P.; Coelho, S.; Amado, Conceição (2017) Stochastic data mining tools for pipe blockage failure prediction. Urban Water Journal: 14 (4), 343-353.
Araújo, João; Cameron, P. J. (2017) Primitive groups, road closures, and idempotent generation .  .
Araújo, João; Cameron, Peter (2016) Two Generalizations of Homogeneity in Groups with Applications to Regular Semigroups . Trans. Amer. Math. Soc.: 368, 1159--1188.
Morais, M. C.  (2016) An ARL-unbiased np-chart. Economic Quality Control: 31, 11-21.
Guerra, Manuel; Nunes, Cláudia; Oliveira, Carlos (2016) Exit option for a class of profit functions. International Journal of Computer Mathematics.
Araújo, João; Bentz, Wolfram; Janusz Konieczny (2016) Directed graphs of inner translations of semigroups. Semigroup Forum.
Moller, Tobias A.; Silva, Maria Eduarda ; Weiss, Christian H.; Scotto, Manuel; Pereira, Isabel (2016) Self-exciting threshold binomial autoregressive processes. AStA Advances in Statistical Analysis: 100, 369-400.
Seyedallaei, Sonia; Diogo, Teresa; Rebelo, Magda (2016) The Jacobi collocation method for a class of nonlinear Volterra integral equations with weaky singular kerne. Journal of Scientific Computing: (69)2, 673-695.
Cruz, Ana M. J.; Alves, Célia A.; Gouveia, Sónia; Scotto, Manuel; Freitas, Maria do Carmo; Wolterbeek, Hubert Th. (2016) A wavelet-based approach applied to suspended particulate matter time series in Portugal.  Air Quality, Atmosphere & Health: 9, 847–859.
Araújo, João; Bentz, Wolfram; Peter J. Cameron; Gordon Royle; Artur Schaefer (2016) Primitive groups and synchronization. Proceedings of the London Mathematical Society: 113, 829--867.
Paulino, S.; Morais, M. C. ; Knoth, K. (2016) An ARL-unbiased c-chart. Quality and Reliability Engineering International: 32, 2847-2858.
Barbosa, Susana M. ; Gouveia, Sónia ; Scotto, Manuel; Alonso, Andrés M. (2016) Wavelet-based clustering of sea level records. Mathematical Geosciences: 48, 149-162.
Kulikov, Gennady Yu; Kulikova, Maria (2016) Estimating the state in stiff continuous-time stochastic systems within extended Kalman filtering. SIAM Journal on Scientific Computing : 38(6), A3565-A3588.
Abreu, Luiz; Colaço, Marcelo J.; Orlande, Helcio R. B.; Alves, Carlos J. S. (2016) Thermography detection of contact failures in double layered materials using the reciprocity functional approach. Applied Thermal Engineering: 100, 1173-1178.
Morais, M. C. ; Pacheco, António (2016) On stochastic ordering and control charts for the traffic intensity. Sequential Analysis: 35, 536-559.
Silva, Telma; Tiago, Jorge; Sequeira, Adélia (2016) Existence, uniqueness, stability and asymptotic behaviour of solutions for a mathematical model of atherosclerosis. Discrete and Continuous Dynamical Systems - S: 9, 343-362.
Soares, Filipa (2016) Howson's Property for Semidirect Products of Semilattices by Groups. Communications in Algebra: 44, 2482-2494.
Ramos, Patrícia F.; Morais, M. C. ; Pacheco, António; Schmid, W. (2016) On the misleading signals in simultaneous schemes for the mean vector and covariance matrix of multivariate i.i.d. output. Statistical Papers: 57, 471-498.
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