224 citations · 2.6k across the 121 of their papers we have counts for
4 papers · 1 filter
Simple criterion for the occurrence of Bose-Einstein condensation
Klaus Kirsten, David J. Toms
We examine the occurrence of Bose-Einstein condensation in both nonrelativistic and relativistic systems with no self-interactions in a general setting. A simple condition for the…
Heat-kernel coefficients of the Laplace operator on the D-dimensional ball
M. Bordag, E. Elizalde, K. Kirsten
We present a very quick and powerful method for the calculation of heat-kernel coefficients. It makes use of rather common ideas, as integral representations of the spectral sum, M…
Heat-kernel coefficients of the Laplace operator on the 3-dimensional ball
K. Kirsten, M. Bordag
We consider the heat-kernel expansion of the massive Laplace operator on the three dimensional ball with Dirichlet boundary conditions. Using this example, we illustrate a very eff…
Applications of the Mellin-Barnes integral representation
E. Elizalde, K. Kirsten, S. Zerbini
We apply the Mellin-Barnes integral representation to several situations of interest in mathematical-physics. At the purely mathematical level, we derive useful asymptotic expansio…