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This article is cited in 1 scientific paper (total in 1 paper)
Differential Equations
Properties of the integral curve and solving of non-autonomous system of ordinary differential equations
G. A. Rudykh, D. J. Kiselevich Institute of Mathematics, Economics and Informatics of Irkutsk State University, Irkutsk, Russia
(published under the terms of the Creative Commons Attribution 4.0 International License)
Abstract:
In this paper, we consider non-autonomous system of ordinary differential equations. For a given non-autonomous system, we introduce the distribution probability-density function of representative points of the ensemble of Gibbs, possessing all the characteristic properties of the probability-density function, and satisfying the partial differential equation of the first order (Liouville equation). It is shown that such distribution probability-density function exists and represents the only solution of the Cauchy problem for the Liouville equation. We consider the properties of the integral curve and the solutions of non-autonomous system of ordinary differential equations. It is shown that under certain assumptions, the motion along trajectories of the system is the maximum of the distribution probability-density function, that is, if all the required terms are satisfied, an integral curve of non-autonomous system of ordinary differential equations at any given time is the most probable trajectory. For the linear non-autonomous system of ordinary differential equations, it is shown that the motion along the trajectories is carried out in the mode of distribution probability-density function and the estimate of its solutions is found.
Keywords:
system of ordinary differential equations, Liouville equation, distribution probability-density function, integral curve, maximum movement.
Original article submitted 24/X/2011 revision submitted – 10/V/2011
Citation:
G. A. Rudykh, D. J. Kiselevich, “Properties of the integral curve and solving of non-autonomous system of ordinary differential equations”, Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 2(27) (2012), 7–17
Linking options:
https://www.mathnet.ru/eng/vsgtu1012 https://www.mathnet.ru/eng/vsgtu/v127/p7
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