Algebraic decomposition of the electromagnetic constitutive tensor. A step toward pre-metric based gravitation?
arXiv:gr-qc/0512068 · doi:10.1002/andp.200710272
Abstract
It is known that the electromagnetic constitutive tensor can be algebraically decomposed in three parts: the so-called principal part, the axion part and the skewon part (see gr-qc/0506042). The aim of this paper is to provide a deeper decomposition of the principal part.
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