S. Leseduarte et A. Romeo, COMPLETE ZETA-FUNCTION APPROACH TO THE ELECTROMAGNETIC CASIMIR EFFECTFOR A SPHERE, Europhysics letters, 34(2), 1996, pp. 79-83
A technique for calculating the Casimir effect in the presence of sphe
rical surfaces is presented. Unlike in earlier works, zeta-function re
gularization is used from the start and the properties of Bessel and r
elated zeta-functions are central. New results concerning these functi
ons are given and our examples of application fully agree with previou
s knowledge.