Research Reports

59/1993	The initial value problem for the equations of magnetohydrodynamic type in non-cylindrical domains Marko A. Rojas-Medar; R. Beltrán-Barrios rp-1993-59.pdf
58/1993	On the topology of complete Riemannian manifolds with nonnegative curvature operator Francesco Mercuri; Maria Helena Noronha rp-1993-58.pdf
57/1993	Multidimensional hyperbolic systems with degenerate characteristic structure M. C. Lopes-Filho; H. J. Nussenzveig Lopes rp-1993-57.pdf
56/1993	Shock formation for a system of conservation laws in two space dimensions M. C. Lopes-Filho; H. J. Nussenzveig Lopes rp-1993-56.pdf
55/1993	A note on discontinuous vector fields and reversible mappings Marco Antonio Teixeira rp-1993-55.pdf
54/1993	Triangular decomposition methods for solving reducible nonlinear systems of equations J. E. Dennis Jr.; José Mario Martínez; Xiaodong Zhang rp-1993-54.pdf
53/1993	On R-automorphisms of R[X] Miguel Ferrero; Antonio Paques rp-1993-53.pdf
52/1993	An error estimate uniform in time for spectral Galerkin approximations for the motion of a chemical active fluid Marko A. Rojas-Medar; Sebastián A. Lorca rp-1993-52.pdf
51/1993	A new approach for the JWKB theory R. L. Monaco; E. Capelas de Oliveira rp-1993-51.pdf
50/1993	The relationship between electromagnetism and quantum mechanics, and a non-linear Dirac equation C. Daviau; Waldyr A. Rodrigues Jr.; Jayme Vaz Jr. rp-1993-50.pdf

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