Yakubovich SB. Index transforms associated with generalized hypergeometric functions. Math. Methods Appl. Sci.. 2004;27:35-46.

Lomp C. Integrals in Hopf algebras over rings. Comm. Algebra. 2004;32:4687-4711.Edit

Carvalho P, de Oliveira AG. Intersection and linking numbers in oriented matroids. Discrete Comput. Geom.. 2004;31:305-321.Edit

[2004-27] Labouriau IS, Ruas MA. Invariants for bifurcations .Edit

Almeida J, Machiavelo A. José Morgado: in memoriam. Bol. Soc. Port. Mat.. 2004:1-18.Edit

Yakubovich SB. On the least values of $L_p$-norms for the Kontorovich-Lebedev transform and its convolution. J. Approx. Theory. 2004;131:231-242.

Yakubovich SB. On the Lebedev transformation in Hardy's spaces. Int. J. Math. Math. Sci.. 2004:3603-3616.

[2004-5] Basto-Gonçalves J. Linearization of resonant vector fields .

Davydov A., Basto-Gonçalves J. Local controllability of dynamic inequalities in general position. Sovrem. Mat. Prilozh.. 2004:56-78.Edit

Labouriau IS, Alves-Pinto C. Loss of synchronization in partially coupled Hodgkin-Huxley equations. Bull. Math. Biol.. 2004;66:539-557.Edit

[2004-36] Yakubovich SB. Lp-Boundedness of the general index transforms .

Alves JF, Luzzatto S, Pinheiro V. Lyapunov exponents and rates of mixing for one-dimensional maps. Ergodic Theory Dynam. Systems. 2004;24:637-657.Edit

Bradlow SB, García-Prada O, Gothen PB. Moduli spaces of holomorphic triples over compact Riemann surfaces. Math. Ann.. 2004;328:299-351.Edit

[2004-11] Baptista M., Gama SM, Zheligovsky V.. Multiple-scale expansions on incompressible MHD systems .Edit

Matos J., Rodrigues MJ, Vasconcelos PB. New implementation of the Tau method for PDEs. Journal of Computational and Applied Mathematics. 2004;164(1):555-567.Edit

Matos J, Rodrigues MJ, Vasconcelos PB. New implementation of the tau method for PDEs. In: Proceedings of the 10th International Congress on Computational and Applied Mathematics (ICCAM-2002). Vol 164/165.; 2004. 5. p. 555-567p. Edit

[2004-4] Yakubovich SB. On a new index transformation related to the product of Macdonald functions .

Yakubovich SB. On a new index transformation related to the product of Macdonald functions. Rad. Mat.. 2004;13:63-85.

[2004-13] Araújo V. Non-zero Lyaouniv exponents, no sign changes and axiom A .Edit

[2004-6] Basto-Gonçalves J, Ferreira AC. Normal forms and linearization of resonant vector fields with multiple eigenvalues .Edit

[2004-25] Lomp C. A note on extending Hopf actions to rings og quotients of module algebras .

[2004-7] Guedes de Oliveira A, Silva DO. Note on the integer geometry of bitwise XOR .Edit

Rosales J., García-Sánchez PA. Numerical semigroups with embedding dimension three. Arch. Math. (Basel). 2004;83:488-496.Edit

Vasconcelos PB, d'Almeida FD. A Parallel Code for Integral Equations on a Cluster of Computers. In: Constanda C, Largillier A., Ahues M, editors. Integral Methods in Science and Engineering: Analytic and Numerical Techniques. Birkhäuser Boston; 2004. 2. p. 261-266p. Edit

[2004-35] Araújo V, Tahzibi A. Physical measures at the boundary of hyperbolic maps .Edit