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On laws of conservation in electrodynamics of continuous media (on the occasion of the 100th anniversary of the S.I. Vavilov State Optical Institute)a Ioffe Institute, ul. Polytekhnicheskaya 26, St. Petersburg, 194021, Russian Federation b S I Vavilov State Optical Institute, Birzhevaya liniya 12, St. Petersburg, 199034, Russian Federation c ITMO University, Kronverksky Pr. 49, bldg. A, St. Petersburg, 197101, Russian Federation d St. Petersburg State University, Universitetskaya naberezhnaya, 7 - 9, St. Petersburg, 199034, Russian Federation This note discusses conservation laws in the electrodynamics of dissipative continuous media, with particular emphasis on the electric area conservation rule for electromagnetic pulses and its application to short pulse propagation problems in resonant media.
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