2013

Publicados:  

Alves, J.F. and Vilarinho, H. (2013). Strong stochastic stability for non-uniformly expanding maps. Ergodic Theory and Dynamical Systems, 33 (3), 647-612.

Edgar Pereira, César Silva and Jacques da Silva, A Generalized Non-Autonomous SIRVS Model, Math. Methods Appl. Sci., 36 (2013), 275-289

Ferreira, M., Ferreira, H. (2013). Extremes of multivariate ARMAX processes. Test, 22 (4), 606-627. 

Ferreira, S.S., Ferreira, D., Nunes, C. and Mexia, J. T. (2013). Estimation of variance components in linear mixed models with commutative orthogonal block structure. Revista Colombiana de Estadistica. Vol 36(2), pp. 261- 271.

Isabel Brás, Ana Catarina Carapito, Paula Rocha: A note on simultaneous block diagonally stable matrices, http://www.math.technion.ac.il/iic/ela/ela-articles/articles/vol26_pp90-100.pdf,ELA-The Electronic Journal of Linear Algebra, 26, 2013, 90-100.

Isabel Brás, Ana Catarina Carapito, Paula Rocha: Stability of Switched Systems With Partial State Reset, IEEE Transactions on Automatic Control, 58, 2013, 1008-1012.

M. Bessa, J. Rocha and M.J. Torres, Hyperbolicity and Stability for Hamiltonian flows. Journal of Differential Equations, vol 254, 1, 309-322, 2013.

M. Bessa, M. Carvalho, Non-uniform hyperbolicity for infinite dimensional cocycles. Stochastics & Dynamics vol 13, 3, 2013.

M. Bessa, J. Rocha, M. J. Torres, Shades of Hyperbolicity for Hamiltonians. Nonlinearity, vol 26, 10, 2851–2873, 2013.

M. Bessa, On C1-generic chaotic systems in three-manifolds. Qualitative Theory of Dynamical Systems, vol 12, 2, 323–334, 2013

M. Bessa, C1-stably shadowable conservative diffeomorphisms are Anosov. Bulletin of the Korean Mathematical Society. vol 50, 5, 1495–1499, 2013.

D.I.C. Mendes, A note on weak regularity in general rings, Contributions to Algebra and Geometry, DOI 10.1007/s13366-013-0162-6.

D.I.C. Mendes, A note on strongly f-regular rings, Mathematica Pannonica 24/1 (2013), 1-10.

J. C. M. Duque, R. M. P. Almeida, and S. N. Antontsev. Convergence of the finite element method for the porous media equation with variable exponent , SIAM J. Numer. Anal. 51 (2013), no. 6, 3483–3504. http://epubs.siam.org/doi/abs/10.1137/120897006


NiK, H., Rebelo, P. and Zahedi, M. (2013). Solution of Infinite Horizon Nonlinear Optimal Control Problems by Piecewise Adomian Decomposition Method. Mathematical Modelling and Analysis, 18 (4), 543-560. 

Nunes, C., Oliveira, M. M. and Mexia, J. T. (2013). Application domains for the Delta method. Statistics. Vol. 47(2), pp. 317-328. DOI:10.1080/02331888.2011.605892

Pacheco, R. and Vilarinho,H. (2013) Metrics on tiling spaces, local isomorphism and an application of Brown's Lemma. Monatshefte für Mathematik, 170 (2), 205-225.

Pacheco, R. and Vilarinho,H. (2013), Statistical Stability for Multi-Substitution Tiling Spaces. Discrete and Continuous Dynamical Systems – A, 33 (10), 4579-4594

Paulo Vargas Moniz (2013). Quantum cosmology: SUSY's stage Int.J.Mod.Phys. D, 22, 22 pp. DOI: 10.1142/S0218271813300061

Pereira, L. (2013). Asymptotic location of largest values of a stationary random field. Communications in Statistics – Theory and Methods, 42 (24), 4513-4524.

Sebastião, J.R., Martins, A.P., Pereira, L. e Ferreira, H. (2013). Estimating the upcrossings index. Test, 22 (4), 549-579.

Y. Tavakol, J. Marto, A. H. Ziaie and P.V. Moniz. Semiclassical collapse with tachyon field and barotropic fluid Phys. Rev. D87, 024042 (2013). DOI: 10.1103/PhysRevD.87.024042

Y. Tavakol, J. Marto, A. H. Ziaie and P.V. Moniz. Gravitational collapse with tachyon field and barotropic fluid, General Relat. and Grav. Volume 45, Issue 4, 819-844 (2013). DOI: 10.1007/s10714-013-1503-3


Aceites:


A.J.G. Bento, C.M. Silva Nonuniform dichotomic behavior: Lipschitz invariant manifolds for ODEs Bull. Sci. Math. Accepted for publication
http://dx.doi.org/10.1016/j.bulsci.2013.09.008

A.J.G. Bento, C.M. Silva Generalized nonuniform dichotomies and local stable manifolds
J. Dyn. Diff. Equat. Accepted for publication

Ferreira, D., Ferreira, S. S., Nunes, C., Fonseca, M. and Mexia, J. T. (2013). Chisquared and Related Inducing Pivot Variables: An Application to Orthogonal Mixed Models. Communications in Statistics – Theory and Methods. DOI:10.1080/03610926.2013.770532

M. Bessa, J. Rocha, Contributions to the geometric and ergodic theory of conservative flows. Ergodic Theory and Dynamical Systems (to appear).

M. Bessa, J. L. Dias, Hamiltonian suspension of perturbed Poincaré sections and an application, Mathematical Proceedings of the Cambridge Philosophical Society, (to appear).

M. Bessa, M. Lee, S. Vaz, Stable weakly shadowable volume-preserving systems are volume-hyperbolic. Acta Mathematica Sinica, (to appear).


Nunes, C., Ferreira, D., Ferreira, S.S. and Mexia, J. T. (2013). Fixed effects ANOVA: An extension to samples with random size. J. Stat. Comput. Simul. DOI: 10.1080/00949655.2013.791293

Viseu, C., Pereira, L., Martins, A.P., Ferreira, H. (2013). On the multivariate upcrossings index. Communications in Statistics – Theory and Methods.
DOI:10.1080/03610926.2012.661507


2012 

António J. G. Bento and César M. Silva, Stable manifolds for nonautonomous equations with nonuniform polynomial dichotomies, Q. J. Math, 63 (2012), 275-308.

Bento, A.J.G., Silva, C.M., Nonuniform $(mu,nu)$-dichotomies and local dynamics of difference equations, Nonlinear Analysis 75 (2012), 78–90.

Correia, N. and Pacheco, R., Harmonic maps of finite uniton number into G2, Math. Z. 271 (1-2) (2012), 13-32.

Ferreira, H., Ferreira, M. (2012). On extremal dependence: some contributions. Test, 21, 566-583.

Ferreira, H., Ferreira, M. (2012). Tail dependence between order statistics. JMVA 105(1), 176-192. 

Ferreira, H., Ferreira, M. (2012). Fragility index of block tailed vectors, Journal of Statistical Planning and Inference, 142 (7), 1837-1848.

Ferreira, H. and Pereira, L. (2012) Point processes of exceedances by random fields. Journal of Statistical Planning and Inference 142, pp. 773-779.

Ferreira, H. (2012) Multivariate maxima of moving multivariate maxima, Statistics and Probability Letters, 82, 1489-1496.

Ferreira, S., Ferreira, D., Nunes, C. and Mexia, J. T. (2012). Estimation and crossing for models with commutative orthogonal block structure. Advances and Applications in Statistical Sciences. Vol. 7, Issue 2, pp. 23-34. ISSN 0974-6811

Ferreira, D., Ferreira, S.S., Nunes, C., Ramos, L. and Mexia, J. T. (2012). Approximate normality of low degree polynomials in normal independent variables. Far East J. Math. Sci. (FJMS). Vol. 68(2), 287 – 296. 

J.C. Fabris, F.T. Falciano, J. Marto and P.V. Moniz. Dilaton Quantum Cosmology with a Schrödinger-like Equation, Braz. J. of Phys. (2012), 42, Issue 5-6, 475-481. DOI: 10.1007/s13538-012-0105-y

J. M. Azevedo, R. Almeida, P. Almeida, Using data mining with time series data in short-term stocks prediction: a literature review, International Journal of Intelligence Science, 2012. 

L. P. Castro, S. Saitoh, Y. Sawano and A.M. Simões. General inhomogeneous discrete linear partial differential equations with constant coefficients on the whole spaces, Complex Analysis and Operator Theory, 6, 307-324, DOI:10.1007/s11785-010-0083-4, 2012.

M. Bessa, J. Rocha, A remark on the topological stability of symplectomorphisms. Applied Mathematics Letters, vol 25, 2, 163-165, 2012.

M. Bessa, C. Silva, Dense area-preserving homeomorphisms have zero Lyapunov exponents. Discrete and Continuous Dynamical Systems – A, vol 32, 4, 1231-1244, 2012.

M. Bessa, Perturbations of Mathieu equations with parametric excitation of large period. Advances in Dynamical Systems and Applications, vol 7, 1, 17-30, 2012.

M. Bessa, M. Carvalho, Frisos imperfeitos de números inteiros (Imperfect friezes of integers). Boletim da Sociedade Portuguesa de Matemática, vol 67, October, 201-208, 2012.

Mendes, D.I.C. (2012). On completely *-prime *-ideals in involution rings, Mathematica Pannonica 23/2, 299-310

N. Bebiano, J. da Providência, and J. P. da Providência. Tsallis entropies and matrix trace inequalities in quantum statistical mechanics Citation: J. Math. Phys. 53, 103303 (2012); doi: 10.1063/1.4753981

Nunes, C., Ferreira, D., Ferreira, S. and Mexia, J. T. (2012). F tests with a rare pathology. J. Appl. Stat.Vol. 39(3), pp. 551-561. DOI:10.1080/02664763.2011.603293

Nunes, C., Ferreira, D., Ferreira, S. and Mexia, J.T. (2012). Control of the truncation errors for generalized F distributions. J. Stat. Comput. Simul. Vol. 82 (2), pp. 165-171. DOI:10.1080/00949655.2011.631924

Nunes, C., Ferreira, D., Ferreira, S. and Mexia, J.T. (2012) Generalized F distributions with random non-centrality parameters: The convolution of Gamma and Beta variables. Far East J. Math. Sci. (FJMS). Vol. 62(1), pp. 1-14.

Rebelo, P. (2012). An approximate solution to an initial boundary value problem: Rakib–Sivashinsky equation. International Journal of Computer Mathematics, 89 (7), 881-889. 


2011

Beites, P. D., Nicolás, A. P., Pozhidaev, A. P. and Saraiva, P., On the identities of a ternary quaternion algebra, Communications in Algebra 39 (3) (2011), 830-842. 

Correia, N. and Pacheco, R., Singular dressing actions on harmonic maps, Q. J. Math. 62 (1) (2011), 71–85.

Ferreira, H. (2011). Dependence between two multivariate extremes. Statistics & Probability Letters, 81, 586-591.

Ferreira, H. and Pereira, L. (2011) Generalized Logistic Models and its orthant tail dependence. Kybernetica, 47, nº 5, 732-739. 

Ferreira, S., Ferreira, D., Nunes, C. and Mexia, J. T. (2011). Discriminant Analysis and Decision Theory. Far East J. Math. Sci. Vol 51(1), 69-79.  

J. da Providencia, N. Bebiano, J.P. da Providencia. Non-Hermitian Hamiltonians with Real Spectrum in Quantum Mechanics, Braz. J. Phys (2011) 41:78-85 DOI 10.1007/s13538-011-0010-9

M. Bessa, P. Varandas, On the entropy of conservative flows. Qualitative Theory of Dynamical Systems, vol 10, 1, 11-22, 2011.

M. Bessa, J. Rocha, Denseness of ergodicity for a class of volume-preserving flows. Portugaliae Mathematica, vol 68, 1, 1-17, 2011.

M. Bessa, J. Rocha, Topological stability for conservative systems, Journal of Differential Equations, vol 250, 10, 3960-3966, 2011.

Morgado, M., Morgado, S., Mendes, L., Pereira, L., Castelo-Branco, M. (2011). Pharmacist interventions to enhance blood pressure control and adherence to antihypertensive therapy: Review and meta-analysis. American Journal of Health-System Pharmacy; 68 (3), 241-253.

Pacheco, R., Pinheiro, F. and Portugal, R., A note on the geometry of three circles, Creat. Math. Inform. 20 (1) (2011), 74-80. 

Rebelo, P. (2011). An approximate solution to an initial boundary value problem to the one-dimensional Kuramoto-Sivashinsky equation, International Journal for Numerical Methods in Biomedical Engineering 27 (6) , pp. 874-881.

Rostami, M. and Rodrigues, I.I., An observation on Krull and derived dimensions of some topological lattices, Archivum Mathematicum 47 (4) (2011), 329-334. 

S. M. M. Rasouli, M. Farhoudi and H. R. Sepangi. An isotropic Cosmological model in Modifed Brans-Dicke Theory , Class. Quantum Grav. 28 (2011) 155004.

S. M. M. Rasouli, N. Khosravi and M. Farhoudi . Horizon problem remediation via deformed phase space, Gen Relativ Gravit (2011) 43:2895–2910

Serôdio, R., On the structure of quaternion rings over Zp, International Journal of Algebra 5 (27) (2011), 1313-1325.


2010 

Cecília Costa, M.A. Facas Vicente, Patrícia Beites, Fernando Martins, Rogério Serôdio e Pedro Tadeu (2010) Produto vectorial em R^7: Projecção de um ponto sobre uma recta, Boletim da Sociedade Portuguesa de Matemática, (62), 19--35.

Costa, C., Martins, F., Serôdio, R., Tadeu, P., Facas Vicente, M.A. e Vitória , J. , Conjugacy and Geometry II – Moore-Penrose Inverse and Feet of the Perpendiculars”, Far East Journal of Mathematical Education 4 (2010), 25-48.

Ferrão, M.E.; Costa, P.; Gama, J. M. R. (2010). Distribution-Free Item Response Model Based on Marginal Maximum Likelihood Estimation. Advances and Applications in Statistics, Vol. 18, Issue 2, P. 109-126.

Ferreira, S., Ferreira, D., Nunes, C. and Mexia, J.T. (2010). Nesting segregated mixed models. J. Stat. Theory Pract. Vol. 4, No. 2, 233-242. ISSN 1559-8608.

Ferreira, D; Ferreira, S; Moreira, E. and Mexia, J.T. (2010). Exact Estimators for Normal Linear Models. Far East Journal of Theoretical Statistics Vol. 31 No 1, 33-48. ISSN: 0972-0863. 

J. P. da Providência. Three Branch Normal Mode Dispersion Relation for Metals: The case of large momentum transfer, Solid State Communications 150 (2010) 54-57 

M. Bessa, J. Rocha, Three-dimensional conservative star flows are Anosov, Discrete and Continuous Dynamical Systems – A , vol 26, 3, 839-846, 2010.

M. Bessa, C. Ferreira, J. Rocha, On the stability of the set of hyperbolic closed orbits of a Hamiltonian, Mathematical Proceedings of the Cambridge Philosophical Society, vol 149, 2, 373-383, 2010.

Mariam Bouhmadi-Lopez, Yaser Tavakoli, Paulo Vargas Moniz. Appeasing the Phantom Menace?, JCAP 1004 (2010) 016 DOI: 10.1088/1475-7516/2010/04/016

Mendes, D.I.C., On involution rings with unique minimal *-subring, Beiträge zur Algebra und Geometrie 51 (2010), 137-146.

Morgado, M., Rolo, S., Pereira, L. and Castelo-Branco, M. (2010) Blood pressure control and antihypertensive pharmacotherapy patterns in a hipertensive population of Eastern Central Region of Portugal. BMC Health Services Research ,10:349.

Morgado, M., Rolo, S., Macedo, A., Pereira, L. and Castelo-Branco, M. (2010) Predictors of uncontrolled hipertension and antihypertensive medication nonadherence. Journal of Cardiovascular Disease Research, vol.1, 4, 196-202. 

N. Bebiano, J. da Providência and J.P. da Providência. Classes of non-hermitian operators with real eigenvalues. Electron. J. Linear Algebra 21 (2010), 98-109.

Pacheco, R., Bianchi-Bäcklund transforms and dressing actions, Geometriae Dedicata 146 (2010), 85-99.

Pereira, L. (2010) On the extremal behavior of a nonstationary normal random field. Journal of Statistical Planning and Inference, 140, 3567-3576.

Rebelo, P. On the approximate solution to an initial boundary valued problem for the Cahn–Hilliard equation, Communications in Nonlinear Science and Numerical Simulation, Volume 15, Issue 2, February, 2010, P. 225-231

Rostami, M. (2010) A symmetry extension of Steinitz’s Lemma on Polyhedra, Journal of Geometry and Topology, 10, 183-189.

Sebastião, J.R., Martins, A.P., Pereira, L., Ferreira, H. (2010) Clustering of upcrossings of high values. Journal of Statistical Planning and Inference, 140, 1003-1012.

Serôdio, R. (2010). Construction of octonionic polynomials, Advances in Applied Clifford Algebras 20 (1), 155-178. 

S. M. M. Rasouli, S. Jalalzadeh. On the energy conditions in non-compact Kaluza-Klein gravity. Annalen der Physik, (Berlin) 19, 276 (2010).


2009

Barreira, L., Silva, C. and Valls, C. (2009) Nonuniform Behaviour and Robustness, J. Differential Equations, 246, 3579-3608.

Bento, A. and Silva, C. (2009) Stable Manifolds for Nonuniform Polynomial Dichotomies, J. Funct. Anal., 257, 122-148. 

Campos, R., Dias, G., Nunes, C. and Nonchev, B. (2009). Clustering of Web Page Search Results: A Full Text Based Approach. International Journal of Computer and Information Science (IJCIS). International Association for Computer and Information Science. Vol. 9 (4). ISSN: 1525-929 

Claus Kiefer, Joao Marto, Paulo Vargas Moniz (2009). Indefinite oscillators and black-hole evaporation Annalen Phys. 18, 722-735 DOI: 10.1002/andp.200910366.

Correia, N. and Pacheco, R. (2009) Adding a uniton via DPW method. International Journal of Mathematics. 20 (8), 997-2010.

Cortez, J., Mena Marugán, G., Serôdio, R. and Velhinho, J.M. (2009) Uniqueness of the Fock quantization of a free scalar field on S1 with time dependent mass, Phys. Rev. D 79 (8).

Costa, C., Martins, F., Serôdio, R., Tadeu, P., M.A. Facas Vicente, M.A. and Vitória, J. (2009). Conjugacy and geometry I – Foot of the perpendicular, distance and Gram determinant, Far East Journal of Mathematical Education, 3 (3), 235-262.

Cunha, I. and Elduque, A. (2009). The supermagic Square in characteristic 3 and Jordan superalgebras, Comtemporary Mathematics, 483, 91-106.

Dajczer, M. and Morais, P. (2009) Isometric rigidity in codimension 2, Michigan Math. Journal, Vol. 58, Issue 3, 759-770. 

Dias, João L; Bessa, Mário. 2009. "Hamiltonian elliptic dynamics on symplectic 4-manifolds", Proceedings of the American Mathematical Society, 137: 585 - 592.

Ferreira, D., Ferreira, S. S., Nunes, C. and Mexia, J. T. (2009). Adjustment of normal mixed models through triple minimization. In: InterStat - Statistics on the Internet. Index for September 2009

Ferreira, S. S.; Ferreira, D; Moreira, E. and Mexia, J.T. (2009). Inference for L Orthogonal Models. Journal of Interdisciplinary Mathematics Vol 12, No 6, 815—824. ISSN 0972-0502 

M. Bessa, J. L. Dias, Hamiltonian elliptic dynamics on symplectic 4-manifolds, Proceedings of the American Mathematical Society, vol. 137, 585-592, 2009.

M.Bessa, Are there chaotic maps in the sphere? Chaos, Solitons & Fractals, vol. 42, nº1, 235-237, 2009.

M. Bessa, J. Rocha, Homoclinic tangencies versus uniform hyperbolicity for conservative 3-flows, Journal of Differential Equations, vol. 247, 2913-2923, 2009.

Mariam Bouhmadi-Lopez, Claus Kiefer, Barbara Sandhofer, Paulo Vargas Moniz. On the quantum fate of singularities in a dark-energy dominated universe ,Phys.Rev. D79 (2009) 124035  DOI: 10.1103/PhysRevD.79.124035

Mendes, D.I.C (2009) Minimal *-biideals of involution rings, Acta Sci. Math. (Szeged), vol. 75, 487-491.

Mendes, D.C.M. (2009) A note on involution rings, Miskolc Mathematical Notes, 10 (2), 155-162, 2009. 

N. Doroud, S. M. M. Rasouli and S. Jalalzadeh. A class of cosmological solutions in induced matter theory with conformally fat bulk space. GRG 41 2637 (2009).

Nunes, C., Ferreira, S. and Ferreira, D. (2009). Generalized F tests in models with random perturbations: the Gamma case. Discuss. Math. Probab. and Stat. Vol. 29

Pacheco, R. (2009) On harmonic tori in compact rank one symmetric spaces. Differential Geometry and its Applications. 27 (3), 335-354. 

Paulo Vargas Moniz, Sudhakar Panda, John Ward.Higher order corrections to Heterotic M-theory inflation, Class.Quant.Grav. 26 (2009) 245003 DOI: 10.1088/0264-9381/26/24/245003

Pereira, L. (2009) The asymptotic location of the maximum of a stationary random field. Statistics & Probability Letters, 79, 2166-2169.

Rostami, M. (2009) On Dimensions of Spectral spaces of Finite Lattices. International Mathematical Forum, 4, (42), 2059 – 2063. 

S. M. M. Rasouli, A. F. Bahrehbakhsh, S. Jalalzadeh, and M. Farhoudi. Quantum mechanics and geodesic deviation in the brane world. EPL, 87, 40006 (2009).


2008 

Beites, P.D. and Pozhidaev, A.P. (2008) On simple Filippov superalgebras of type A(n,n), Asian-European Journal of Mathematics, 1 (4), 469--487.

Breda, A., Marques, R.E., Rostami, M. e Wegner, B. (2008). On a classification of locally 2-Sierpinski spaces. Missouri Journal of Mathematical Sciences, 20(1), 53-59. 

Campos, R., Dias, G., Nunes, C. and Nonchev, B. (2008). Clustering of Web Page Search Results: A Full Text Based Approach. International Journal of Computing and Information Science (IJCIS). International Association for Computer and Information Science. Vol. 9 (4), pp. 29-40. 

Ferreira, S.; Ferreira, D. and Mexia, J.T. (2008). Double Tier Cross Nesting Design Models . Journal of Interdisciplinary Mathematics, 11, N 2, 275-289.

Ferreira, D; Ferreira, S; Ramos, L and Mexia, J.T. (2008) Normal approximation to the product of a Non Central Chi-Square by an Independent Normal Variable. Aplimat - Journal of Applied Mathematics, I, N 2, 185-192.

Ferreira, H. e Pereira, L. (2008). How to compute the extremal index of stationary random fileds, Statistics and Probability Letters, 78, (11), 1301-1304.

Ferreira, S., Moreira, E. e Mexia, J.T. (2008). Orthogonal Almost Balanced Models. Aplimat - Journal of Applied Mathematics, I, N 2, 193-198.

Gomes, M. I., L. Henriques Rodrigues, B. Vandewalle and C. Viseu (2008). A Heuristic Adaptive Choice of the Threshold for Bias-Corrected Hill Estimators. J. Statist. Comput. and Simulation 78:2, 133-150. 

J. Marto. The Franson experiment revisited, Phys. Lett. A 372,(2008), 6872-6874. DOI: 10.1016/j.physleta.2008.10.010

J. P. da Providência. Collective modes in metals: quantal and semiclassical approaches,
J. Phys.: Condens. Matter, 20 (2008) 485219 (6pp).

Martins, A., Ferreira, H. e Pereira, L. (2008) . Multidimensional outlier-proneness of dependent data and the extremal index. Statistical Methodology, 5, 72-82. 

Mariam Bouhmadi-Lopez, Paulo Vargas Moniz. Phantom-like behaviour in a brane-world model with curvature effects Phys.Rev. D78 (2008) 084019 DOI: 10.1103/PhysRevD.78.084019

M. Bessa, Dynamic of generic multidimensional linear differential systems, Advanced Nonlinear Studies, Vol 8, 191-211 , 2008.

M. Bessa, J. Rocha, On the fundamental regions of a fixed point free conservative Hénon map, Bulletin of the Australian Mathematical Society, Vol 77, nº 1, 37-48, 2008.

M. Bessa, J. L. Dias, Generic dynamics of 4-dimensional C2 Hamiltonian systems, Communications in Mathematical Physics, Vol 281, nº 1, 597-619, 2008. 

M. Bessa, P. Duarte, Abundance of elliptic dynamics on conservative 3-flows, Dynamical Systems – An international Journal, Vol 23, nº 4, 409-424, 2008.

M. Bessa, J. Rocha, On C1-robust transitivity of volume-preserving flows , Journal of Differential Equations, vol. 245 – 11, 3127-3143, 2008.

M. Bessa, M. Carvalho, On the spectrum of infinite dimensional random products of compact operators , Stochastics & Dynamics, vol. 8 – 4, 593-611, 2008.

M. Bessa, Generic incompressible flows are topological mixing, Comptes Rendus Mathematique vol. 346, 1169-1174, 2008.

Nunes, C., Santos, C. and Mexia, J. T. (2008). Relevant statistics for models with commutative orthogonal block structure and unbiased estimator for variance components. Journal of Interdisciplinary Mathematics. Vol.11, No. 4, pp. 553-564. DOI: 10.1080/09720502.2008.10700581

Nunes, C., Pinto, I. and Mexia, J.T. (2008). Generalized F tests and selective generalized F tests for orthogonal associated mixed models. Discuss. Math. Probab. Stat. Vol. 28(2), pp. 229-246. 

Pereira, E., Serôdio, R., Vitória, J. Newton's method for matrix polynomials. Int. J. Math. Game Theory Algebra 17, No. 4, 183-188 (2008)

Pinto, I., Nunes, C. and Mexia, J.T. (2008). Analysis of a with-covariates model for the Environmental Indexes. Biometrical Letters, 45 (2), 9-22.

Rostami, M., Wegner, B. e Breda, A. (2008). Locally n-Sierpinski spaces as subspaces of Sierpinski powers. IJMM-International Journal Mathematical Manuscripts, 2(1).

Rostami, M. (2008). On dimension of the manifold of polyhedral G-spaces. Int. J. Contemp. Math. Sciences, 3(11), 537-544. 

Tumurbat, S., Mendes, D.I.C. e Mekei, A. (2008). On radicals and polynomial rings. Portugaliae Mathematica,vol 65, Issue 2, 261-273 . 

V. Araújo, M. Bessa, Dominated splitting and zero volume for incompressible three-flows, Nonlinearity, Vol 21, nº 7, 1637-1653, 2008.

Yurinsky, V. (2008). A lower bound for the principal eigenvalue of the Stokes operator in a random domain. Ann. Inst. H. Poincaré (B) Probabilités et Statistiques, 44(1), 1-18.

2007

Ferreira, S., Ferreira, D. e Mexia, J.T. (2007). Cross Additivity in Models with Cross Nesting . Journal of Statistical Theory and Practice, 1(3-4), 377-392.

Fernandes, C., Ramos, P., Ferreira, S. e Mexia, J.T. (2007). Variance components estimation in generalized orthogonal models. Discussiones Mathematicae - Probability and Statistics, 27, 99-115.

Jesus, V., Ferreira, S.S. e Mexia, J.T. (2007). Joint Estimation for Normal Orthogonal Mixed Models. Discussiones Mathematicae - Probability and Statistics, 27, 5-13.

Gama, J. e Yurinsky, V. (2007). Exponential estimate for wavelet density estimator. Theory of Probability and its Applications. 51(.4), 595-608. (Traduzido de Teoriya Veroyatn. (2006) 51(4), 674-690.)

Serôdio, R. (2007). On Octonionic Polynomials. Advances in Applied Clifford Algebras, 17, 245-258.

Ferreira, H. e Pereira, L. (2007). How to compute the extremal index of stationary random fileds. Aceite para publicação em Statistics and Probability Letters.


2006


Yurinsky, V. (2006). On the smallest eigenvalue of the Stokes operator in a domain with fine-grained random boundary. Siberian Mathematical Journal, 47(6), 1167-1178.

Gama, J. e Yurinsky, V. (2006). Exponential estimate for wavelet density estimator. Teoriya Veroyatn. i ee Primen. 51(4), 674-690. (Em russo. Traduzido para Inglês: Theory of Probability and Its Applications. 51(4)).

Ferreira, H. (2006). A new model for time series dependence and the extremal index of higher-order Markov chains. RevStat, 4(2).

Ferreira, H. (2006). The upcrossings index and the extremal index. Journal of Applied Probability, 43(4).

Ferreira, D., Saraiva, S. e Mexia, J.T. (2006). Cross Additivity-An Application. Discussiones Mathematicae - Probability and Statistics, 26, 207-219.

Pereira, L. e Ferreira, H. (2006). Limiting crossing probabilities of random fields. Jornal of Applied Probability, 43(3), pp. 884-891.

Nunes, C. e Mexia, J. (2006). Non-central generalized F distributions. Discussiones Mathematicae – Probability and Statistics, 26, 47-61

Nunes, C., Pinto, I. e Mexia, J. (2006). F and Selective F tests with balanced cross-nesting and associated models. Discussiones Mathematicae – Probability and Statistics, 26, 193-205.

R.Pacheco. (2006). Harmonic maps in the symplectic group Sp(n). International Journal of Mathematics. 17(3).


2005


Yurinsky, V. e Gama, J. (2005). On distribution of error of linear wavelet estimator. Lithuanian Mathematical Journal, 45(2), 152-172.

Martins, A. e Ferreira, H. (2005). Measuring the extremal dependence. Statistics & Probability Letters, 73. 99-103.

Martins, A. e Ferreira, H. (2005). The multivariate extremal index and the dependence structure of a multivariate extreme value distribution. Test, 14(2). 433-448.

Ferreira, H. e Temido, M.G. (2005). Maximum of a random number of variables attracted to a max-semistable distribution. Pub. Inst. Stat. Univ. Paris, XLIX, 1, 71-80.

Ferreira, D., Mexia, J. T. e Saraiva, S. F. (2005). Stable hypothesis for Mixed Models with balanced cross-nesting. Discussiones Mathematicae – Probability and Statistics, 25, 241-249.

Ferreira, D. e Mexia, J. T. (2005). Confidence intervals for the variance components in a grapevine experiment. Listy Biometryczne – Biometrical Letters. 42(2), 113-131.

Dias, G., Alves, E. e Nunes, C. (2005). Topic Segmentation: How Much Can We Do By Counting Words And Sequences of Words. Pliska Studia Mathematica Bulgarica Journal, 17, 39-70.

Pacheco, R. (2005). Twistor fibrations giving primitive harmonic maps of finite type. International Journal of Mathematics and Mathematical Sciences, 2005(20).

Costa, C., Azevedo Perdicoúlis, T.-P. e Serôdio, R., A Study on Quaternion Block Quasi-Tridiagonal Systems. Computers & Mathematics with Applications, 50(7), 1011-1016.

Rebelo, P. e Smirnov, G. (2005). Journal of Dynamical and Control Systems, 11(3), 413-432.


2004

Hall, A., Scotto, M. e Ferreira, H. (2004). On the extremal behaviour of generalised periodic sub-sampled moving averages with regularly varying tails. Extremes, 7, 149-160.
Pereira, L. (2004). Extremal behaviour in models of superposition of random variables. RevStat, 2, 163-178.

Nunes, C. e Mexia, J. T. (2004). Selective generalized F tests. Discussiones Mathematicae– Probability and Statistics, 24, 281 - 288.

Martins, A. e Ferreira, H. (2004). Extremes of periodic moving averages of random variables with regularly varying tail probabilities. Sort, 28(2), 111-230.

Martins, A. e Ferreira, H. (2004). The extremal index of sub-sampled processes. Journal of Statistical Planning and Inference, 124, 145-152.

Antontsev, S.N., Meirmanov, A.M. e Yurinsky, V.V. (2004). Weak Solutions for a Well-Posed Hele-Shaw Problem. Bollettino dell'Unione Matematica Italiana, Sezione B: Articoli di ricerca matematica. 7-B(2), 397-424.


2003

Mendes D. I. C. (2003). On *-essential ideals and bi-ideals of rings with involution. Quaestiones Matematicae, 26, 67-72.

Ferreira, H. (2003). Extremes of associated variables. Statistics & Probability Letters, 63, 333-338.

Scotto, M.G. e Ferreira, H. (2003). Extremes of deterministic sub-samled moving averages with heavy-tailed innovations. Applied Stochastic Models in Business and Industry, 19, 303-313.

Ferreira, H. e Martins, A.P. (2003). The extremal index of sub-sampled periodic sequences with strong local dependence. RevStat, 1, 15-24.

Nunes, C. e Mexia, J. T. (2003). Selective F tests for sub-normal models. Discussiones Mathematicae – Probability and Statistics, 23, 167-174.


2002

Pereira, L. e Ferreira, H. (2002) The asymptotic locations of the maximum and the minimum of stationary sequences. Journal of Statistical Planning and Inference, 104, 287-295.

Ferreira, H. e Scotto, M. (2002) On the asymptotic location of high values of a stationary sequence. Statistic and Probability Letters, 60, 475-482.

2001

Pereira, L. e Ferreira, H. (2001) Limit distribution of point processes of high local maxima. Journal of Statistical Planning and Inference, 97, 227-233.

Serôdio, R., Pereira, J. e Vitória, J. (2001). Computing the Zeros of Quaternion Polynomials, Computers & Mathematics with Applications, 42(8-9), 1229-1237.

Serôdio, R. e Siu, L.-S., Zeros of Quaternion Polynomials, Applied Mathematics Letters, 14(2), 237-239.

2000

Ferreira, H. (2000). A note on extremes of concomitants of order statistics. Extremes 3:4, 385-392.


1999

Costa, C. e Serôdio, R., A Footnote on quaternion Block-Tridiagonal Systems, Electronic Transactions on Numerical Analysis, 9, 53-55.

| Universidade da Beira Interior
| Faculdade de Ciências

Centro de Matemática e Aplicações
Rua Marquês d'Ávila e Bolama
6200-001 Covilhã, Portugal
Tel: (+351) 275 319 700
Email: cma@ubi.pt

2014 Centro de Matemática e Aplicações da Universidade da Beira Interior, funded by

LogotipoFCT - Fundação para a Ciência e a Tecnologia - Ministério da Educação e Ciência

Todos os direitos reservados CMA © 2014 | Contactos | Topo