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[2004-2] Lomp C. Prime elements in partially ordered groupoids applied to modules and Hopf algebra actions .

Matos V.. Problema de Riemann para Duas Leis de Conservação do Tipo IV com Região Elíptica 2004.Edit

[2004-9] Almeida J, Margolis SW, Volkov M. The Pseudovariety of Semigroups of Triangular Matrices over a Finite Field .Edit

Almeida R, Pueyo E, Martínez JP, Rocha AP, Laguna P. Quantification of the QT variability related to HRV: Robustness study facing automatic delineation and noise on the ECG. In: {31st Annual Scientific Meeting on Computers in Cardiology}. Vol {31}. {IEEE}; 2004. {. {p. 769-772p. }.Edit

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Bradlow SB, García-Prada O, Gothen PB. Representations of surface groups in the general linear group. In: Proceedings of the {XII} {F}all {W}orkshop on {G}eometry and {P}hysics. Vol 7. R. Soc. Mat. Esp., Madrid; 2004. 8. p. 83-94p. Edit

Rosales J., García-Sánchez PA, García-García JI, Branco MB. Saturated numerical semigroups. Houston J. Math.. 2004;30:321-330 (electronic).Edit

[2004-29] Reis H. Semi-complete vector fields of saddle-node type in C^n .

[2004-37] Araújo V. Semicontinuity of entropy, existence of equilibrium states and of physical measures .Edit

Delgado M, Fernandes VH, Margolis S, Steinberg B. On semigroups whose idempotent-generated subsemigroup is aperiodic. Internat. J. Algebra Comput.. 2004;14:655-665.Edit

[2004-24] Aguiar MA, Castro SB, Labouriau IS. Simple vector fields with complex behaviour .

Simões L, de Oliveira PM, Costa AP. Simulation and modelling of vehicule’s delay at semi-actuated signalized intersections. In: Compstat’2004 symposium.; 2004. 1. p. 1823-1830p. Edit

Oliveira LA. A solution to the word problem for free pseudosemilattices. Semigroup Forum. 2004;68:246-267.

Labouriau IS, Rito CM. Stability of equilibria in equations of Hodgkin-Huxley type. In: Real and complex singularities. Vol 354. Amer. Math. Soc., Providence, RI; 2004. 1. p. 137-143p. (Contemp. Math.; vol 354).Edit

[2004-26] Araújo V, Pacifico MJ. Statistical stability of saddle-node arcs .Edit

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Alves JF. Strong statistical stability of non-uniformly expanding maps. Nonlinearity. 2004;17:1193-1215.

[2004-28] Labouriau IS, Pinho EM. Symmetries of projected wallpaper patterns .Edit

Dias A., Stewart I.. Symmetry Groupoids and Admissible Vector Fields for Coupled Cell Networks. Journal of the London Mathematical Society. 2004;69:707-736.Edit

[2004-21] Almeida J, Costa JC, Zeitoun M. Tameness of pseudovariety joins involving R .Edit

[2004-3] Yakubovich SB. Theorems of the Hausdorff-Young and Riesz-Kolmogorov type for the Kontorovich-Lebedev transform and .

[2004-43] Pin J-, Silva PV. A topological approach to transductions .Edit