- Raúl Figueroa (with Minerva Cordero) On the semifield planes of order 5 and dimension 2 over the Kernel, Note Di Matematica, 2004.
- Guihua Gong and Liangqing Li (with Geore A. Elliott) Shape equivalence of AH inductive limit systems: cutting down by projections, C. R. Math. Acad. Sci. Soc. R. Can. 26, no. 1, 4 10, 2004.
- M. R. Emamy-K., A new elementary proof for an old theorem on convex sets, Congressus Numerantium 170 (2004), 107-112.
- M. R. Emamy-K., The cut number of the n-cube, boolean methods and a geometric connection to threshold logic, ENDM vol 17 (2004), 141-143.
- A. K. Kelmans (withD. Mubayi), How many disjoint 2-edge paths must a cubic graph have?, J. Graph Theory, 45, 57-79, 2004.
- Francis Castro (with Oscar Moreno, Kenneth W. Shum and Vijay Kumar) Tight bounds for Chevalley-Warning-Ax-Katz type estimates, with improved applications, Proc. London Math. Soc. (3) 88, no.3 (2004), 545-564.
- Valentin Keyantuo (with Carlos Lizama), Fourier multipliers and integro-di erential equations in Banach spaces, J. London Math. Soc. (2) 69, no. 3 (2004) 737-750.
- Valentin Keyantuo (with Mohamed Abouabassi, Omar El-Mennaoui), Characterization of Gaussian semigroups on separable Banach spaces, J. Evol. Equ. 4 (2004), no. 2, 157–167.
- C. Pasnicu, The ideal property and tensor products of C*-algebras, Rev. Roumaine Math. Pures Appl. 49, no. 2, 153-162, 2004.
- Luis R. Pericchi (with James O. Berger), Training samples in objective Bayesian model selection, , The Annals of Statistics, 32, no. 3, 841-869, 2004.
- Ana Helvia Quintero, A reaction to “Mathematics education: A vision of its evolution, by Ricardo Cantoral and Rosa M. Farfan in Educational Studies in Mathematics, An International Journal, 57 (2):291-294, 2004.
- Pedro Rodríguez Esquerdo (with Purísima Centeno Alayón), Implicaciones del “Copyright y Fair Use” para la Educación a Distancia, Simbiosis, Avances en Educación a Distancia, Vol. 1, No. 2, (2004), ISSN 1548-3436, en http://egcti.upr.edu/simbiosis.