Extended axion electrodynamics: Optical activity induced by nonstationary dark matter-vector of macroscopic velocity of the axion system as a whole. We consider extended equations of axion
electrodynamics Quantum electrodynamic approach to the conductivity of gapped graphene-gap parameter is investigated starting from the first principles of quantum
electrodynamics in (2+1)-dimensional
A geometric approach to the Lagrangian and Hamiltonian formalism of electrodynamicsIn solving field problems, for example problems of
electrodynamics, we commonly use the Lagrangian