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Teoreticheskaya i Matematicheskaya Fizika, 1975, Volume 24, Number 3, Pages 368–381 (Mi tmf4021)  

Noncumulant projection and elimination of time derivatives from the nonequilibrium distribution function

L. Ts. Adzhemyan, F. M. Kuni
References:
Abstract: Time-independent projection operators are introduced, the action of which on the non-equilibrium distribution function leads to quasi-equilibrium function. These projection operators single out in a consequtive way the contributions from unconnected diagrams and so they may be called non-cumulant. By means of the non-cumulant projections the time derivatives are removed from the non-equilibrium distribution function. This is performed for the most general case of hydrpdynamic theory, i.e. in any order with respect to the amplitude deviations from the equilibrium and with the spatial and time dispersion completely taken into account. The final expression for the nonequilibrium distribution function contains explicitly the contributions of connected diagrams only. With the aid of the technique developed, the equations of the nonlinear and non-local in time and space hydrodynamics obtained earlier on the basis of the Mori projection operators, are transformed to the explicitly connected form. Then the equivalence between these equations and the equations obtained on the basis of the non-cumulant projection operators is established.
Received: 03.10.1974
English version:
Theoretical and Mathematical Physics, 1975, Volume 24, Issue 3, Pages 895–904
DOI: https://doi.org/10.1007/BF01029876
Language: Russian
Citation: L. Ts. Adzhemyan, F. M. Kuni, “Noncumulant projection and elimination of time derivatives from the nonequilibrium distribution function”, TMF, 24:3 (1975), 368–381; Theoret. and Math. Phys., 24:3 (1975), 895–904
Citation in format AMSBIB
\Bibitem{AdzKun75}
\by L.~Ts.~Adzhemyan, F.~M.~Kuni
\paper Noncumulant projection and elimination of time derivatives from the nonequilibrium distribution function
\jour TMF
\yr 1975
\vol 24
\issue 3
\pages 368--381
\mathnet{http://mi.mathnet.ru/tmf4021}
\transl
\jour Theoret. and Math. Phys.
\yr 1975
\vol 24
\issue 3
\pages 895--904
\crossref{https://doi.org/10.1007/BF01029876}
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    Теоретическая и математическая физика Theoretical and Mathematical Physics
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