Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
Journal of Mathematical Physics
34 (1993), S. 2936-2949
ISSN:
1089-7658
Source:
AIP Digital Archive
Topics:
Mathematics
,
Physics
Notes:
The definition of electromagnetic field energy for systems with singular sources is considered. It is shown that whereas for an electrostatic system of point charges one can identify an interaction energy density that is integrable, no sensible improper integral can be defined for dipole, or higher-order multipole, sources. It is shown how force and torque density forms can be obtained by examining the field dependence of certain "potential forms.'' In the static case closed two-forms can be introduced that act as potentials for the force and torque two-forms. As these forms are constructed out of the fields in source-free regions singularities are avoided.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.530106
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