in Progress of Theoretical and Experimental Physics
P ublished online May 2014 .
Journal Article. Subjects: Quantum Physics; Mathematical and Statistical Physics; Physics. 10273 words.
A novel perturbative method, proposed by Panda et al. [Prog. Theor. Phys. 127, 57 (2012)] to solve the Helmholtz equation in two dimensions, is extended to three dimensions for general...