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JOURNALS // Doklady Rossijskoj Akademii Nauk. Mathematika, Informatika, Processy Upravlenia // Archive

Dokl. RAN. Math. Inf. Proc. Upr., 2020 Volume 491, Pages 57–60 (Mi danma50)

MATHEMATICS

Attractors of an autonomous model of nonlinear viscous fluid

V. G. Zvyagin, M. V. Kaznacheev

Voronezh State University, Voronezh, Russian Federation

Abstract: For an autonomous model of the motion of a nonlinear viscous fluid, we study the limiting behavior of its weak solutions as time tends to infinity. Namely, the existence of weak solutions on the positive half-axis is established, the trajectory space corresponding to the solutions of this model is determined, and the existence of a minimum trajectory attractor and, then, a global attractor in the phase space is proved using the theory of trajectory spaces. Thus, it turns out that whatever the initial state of the system describing the model is, it is “forgotten” over time and the global attractor is infinitely approached.

Keywords: attractors, trajectory space, nonlinear viscous fluid.

UDC: 517.958

Presented: E. I. Moiseev
Received: 27.06.2019
Revised: 27.06.2019
Accepted: 24.01.2020

DOI: 10.31857/S2686954320020277


 English version:
Doklady Mathematics, 2020, 101:2, 126–128

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© Steklov Math. Inst. of RAS, 2025