In this article, we study the existence and uniqueness of outgoing solutions for the Helmholtz equation in locally perturbed half-planes with passive boundary. We establish an explicit outgoing radiation condition which ...

We study the scalar electrodynamics (S Q E D (4)) and the spinor electrodynamics (Q E D (4)) in the null-plane formalism. We follow Dirac's technique for constrained systems to analyze the constraint structure in both ...

In this paper we apply the time dependent Ginzburg-Landau (TDGL) equations to the study of thin superconducting films of variable surfaces in the presence of an external applied magnetic field We have made a systematic ...

In this paper we apply the time dependent Ginzburg-Landau (TDGL) equations to the study of thin superconducting films of variable surfaces in the presence of an external applied magnetic field We have made a systematic ...

It is shown that the finite-dimensional simple representations of the superJordan plane B are one-dimensional. The indecomposable representations of dimension 2 and 3 of B are classified. Two families of indecomposable ...

Presentación de los programas y planes de desarrollo económico y social a efectuar por el Departamento Nacional de Planeación.

Presentación de los programas y planes de desarrollo económico y social a efectuar por el Departamento Nacional de Planeación.