Symmetry Properties of Electromagnetic Field in the Matter

D. Yearchuck, A. Alexandrov

The sets $\Phi (F^{\mu \nu }),\Phi ({\tilde{F}}^{\mu \nu })$ of linear functionals on the space $<F,+,\cdot >$ represent themself linear space $<\Phi ,+,\cdot >$ over the field of \textit{scalars}…