RUS  ENG
Full version
JOURNALS // Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences // Archive

Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 2013 Issue 1(30), Pages 106–143 (Mi vsgtu1140)

This article is cited in 2 papers

Procedings of the 3nd International Conference "Mathematical Physics and its Applications"
Equations of Mathematical Physics

On problem of nonexistence of dissipative estimate for discrete kinetic equations

E. V. Radkevich

M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Moscow, 119899, Russia

Abstract: The existence of a global solution to the discrete kinetic equations in Sobolev spaces is proved, its decomposition by summability is obtained, the influence of its oscillations generated by the interaction operator is explored. The existence of a submanifold ${\mathcal M}_{diss}$ of initial data $(u^0, v^0, w^0)$ for which the dissipative solution exists is proved. It’s shown that the interaction operator generates the solitons (progressive waves) as the nondissipative part of the solution when the initial data $(u^0, v^0, w^0)$ deviate from the submanifold ${\mathcal M}_{diss}$. The amplitude of solitons is proportional to the distance from $(u^0, v^0, w^0)$ to the submanifold ${\mathcal M}_{diss}$. It follows that the solution can stabilize as $t\to\infty$ only on compact sets of spatial variables.

Keywords: dissipative estimates, discrete kinetic equations.

UDC: 517.958:533.723

MSC: Primary 35Q20; Secondary 35C20, 35Q82, 82B40

Original article submitted 18/X/2012
revision submitted – 25/XII/2012

DOI: 10.14498/vsgtu1140



Bibliographic databases:


© Steklov Math. Inst. of RAS, 2024