Momento (Jan 2000)
Nuevas soluciones cerradas, en coordenadas esféricas, de la ecuación de ondas homogénea en tres dimensiones
Abstract
The solution of the homogeneous wave equation is revisited, under two criter'ia: (a) No mathematical solutions are discarded a priori, and (b) The solution by eparation of variables is done without decoupling time and distance. Three groups of nonconventional components are identified: (1) Two non-dispersive terms in Cartesian coordinates, (2) New directional solutions in spherical coordinates, and (3) New time-distance solutions in spherical coordinates which amount to closed three- dimensional travelling waves.