title: Material equations for electromagnetism with toroidal polarizations.
abstract: With regard to the toroid contributions, a modified system of equations of electrodynamics moving continuous media has been obtained. Alternative formalisms to introduce the toroid moment contributions in the equations of electromagnetism has been worked out. The two four-potential formalism has been developed. Lorentz transformation laws for the toroid polarizations has been given. Covariant form of equations of electrodynamics of continuous media with toroid polarizations has been written.
authors.affiliation: Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980, Dubna, Moscow region, Russia. dubovik@thsun1.jinr.ru
authors.forename: V M
authors.initials: VM
authors.lastname: Dubovik
authors.forename: M A
authors.initials: MA
authors.lastname: Martsenyuk
authors.forename: B
authors.initials: B
authors.lastname: Saha