components of the Earth's seismic activity: global and mirror. Calculated components of deformation tensor on the Earth surface (polygon in Kyrgyzstan, using 510 GPS stations over 1100 x 500 km^2) and showed correlation between the maxima of these components and the seismic activity regions. With collaborators in Tel Aviv University, Fridman developed a program in modeling and destruction of tsunami. Letter of the 46 Fridman was one of the 46 people who signed "the letter of the 46" in 1968 protesting against the closed court proceedings of four Moscow dissidents: A. Ginzburg, Yu. Galanskov, A. Dobrovolskii, and V. Lashkova, addressed to the Supreme Court of Russian Federal Republic and to the Attorney General of the USSR. The text of the letter was published in the New York Times on March 23, 1968. A massive internal political campaign of repressions followed; Fridman was fired from Novosibirsk University, but continued to hold a position at the Institute of Nuclear Physics. Publications Books Observational Manifestation of Chaos in Astrophysical Objects, editors: Fridman, Marov, Miller Physics of Planetary Rings: Celestial Mechanics of Continuous Media (Astronomy and Astrophysics Library) by Alexei M. Fridman, Nikolai N. Gorkavyi Astrophysical Disks: Collective and Stochastic Phenomena (Astrophysics and Space Science Library) by Aleksey M. Fridman, M.Y. Marov, and Ilya G. Kovalenko Physics of Gravitating Systems, by A. Fridman, V. Polyachenko, 1984. Articles More than 250 scientific papers in plasma physics, quantum physics of solid body, theoretical physics, cosmology, relativistic astrophysics, general problem of gravity physics, dynamics of stellar systems, gravity hydrodynamics, nonlinear dynamics (solitons, shock waves, vortices, turbulence), dynamics of gaseous galactic disk, problem of spiral structure generation, laboratory simulation of spiral-vortex structure generation on the set-up with rotating shallow water, models of the Milky Way, dynamics of accretion disks, dynamics of circumstellar disks, cosmogony, physics of planetary rings, dynamics of space tether systems, seismic activity of the Earth, tsunami wave suppression. Recent publications "Tsunami wave suppression using submarine barriers", A. M. Fridman, L. S. Alperovich, L. Shemer, L. Pustil'nik, D. Shtivelman, An. G. Marchuk, D. Liberzon (2010) UFN, Volume 180, Number 8, Pages 843–850. "On some correlations in seismodynamics and on two components of Earth's seismic activity" A. M. Fridman, E. V. Polyachenko, N. R. Nasyrkanov (2010) UFN, Volume 180, Number 3, Pages 303–312. "Wave angular momentum and the evolution of planetary rings" I. L. Dranikov, A. M. Fridman (2010) Mon. Not. R. Astron. Soc., Volume 404, Issue