7 August] 1908 – 22 December 1975) was a Russian, later Soviet, theoretical physicist prominent in the fields of statistical mechanics, kinetics, and especially in plasma physics.
After the graduation Vlasov continued to work in the MSU, where he spent all his life, collaborating with Nobelists Pyotr Kapitsa, Lev Landau, and other leading physicists.
In optics he analyzed, partially with Vasily Fursov, spectral line broadening in gases at large densities (1936—1938).
A new suggestion in these works was to use long range collective interactions between atoms for a correct description of spectra line broadening at large densities.
[3] In this subject Vlasov in particular studied using the linearized Vlasov equation the conditions for spontaneous origin of crystal structure in the medium and found the criteria for the origin of the periodic structure in terms of the temperature, density, and microscopic interaction of particles of the medium.