Abstract:
We study the stability of solutions to the linear stochastic Barenblatt – Zheltov – Cochina equation in spaces of smooth differential forms defined on a two-dimensional torus. We show the existence of stable and unstable invariant spaces of solutions in spaces of "noises" for various parameters characterizing the medium and properties of the fluid. Also, we prove the existence of exponential dichotomies of solutions, which consist in the splitting of the phase space into a direct sum of two invariant spaces. Moreover, solutions starting in one of these spaces increase exponentially, remaining in this space, and solutions starting in another space decrease exponentially, also remaining in this space. We construct an algorithm to find stable and unstable solutions to the stochastic Barenblatt – Zheltov – Cochina equation on one of the maps of a two-dimensional torus. The algorithm takes into account that the initial data belong to the phase space. The algorithm is implemented in the Maple environment. For various values of the parameters included in the Barenblatt – Zheltov – Cochina equation, we present graphs of exponentially stable and exponentially unstable solutions that belong to stable and unstable invariant spaces. Also, we present the graphs of solutions having exponential dichotomy.
Keywords:
Sobolev type equation, stochastic equations, differential forms, exponential dichotomies.
Citation:
O. G. Kitaeva, “Exponential dichotomies of a non-classical equation in spaces of differential forms on a two-dimensional torus with "noises"”, J. Comp. Eng. Math., 6:3 (2019), 26–38
\Bibitem{Kit19}
\by O.~G.~Kitaeva
\paper Exponential dichotomies of a non-classical equation in spaces of differential forms on a two-dimensional torus with "noises"
\jour J. Comp. Eng. Math.
\yr 2019
\vol 6
\issue 3
\pages 26--38
\mathnet{http://mi.mathnet.ru/jcem150}
\crossref{https://doi.org/10.14529/jcem190303}
Linking options:
https://www.mathnet.ru/eng/jcem150
https://www.mathnet.ru/eng/jcem/v6/i3/p26
This publication is cited in the following 8 articles:
O. G. Kitaeva, “Stability of solutions to the stochastic Oskolkov equation and stabilization”, Vestn. YuUrGU. Ser. Matem. modelirovanie i programmirovanie, 17:1 (2024), 17–26
E. D. Akhmadeev, O. G. Kitaeva, “Stabilizatsiya reshenii stokhasticheskogo uravneniya Dzektsera”, J. Comp. Eng. Math., 11:2 (2024), 3–10
O. G. Kitaeva, “Invariantnye prostranstva stokhasticheskoi sistemy uravnenii Oskolkova”, Vestn. Yuzhno-Ur. un-ta. Ser. Matem. Mekh. Fiz., 16:3 (2024), 27–31
“Stabilization of the Stochastic Barenblatt - Zheltov - Kochina Equation”, JCEM, 10:1 (2023)
O. G. Kitaeva, “Invariant manifolds of semilinear Sobolev type equations”, Vestn. YuUrGU. Ser. Matem. modelirovanie i programmirovanie, 15:1 (2022), 101–111
D. E. Shafranov, “Sobolev type equations in spaces of differential forms on Riemannian manifolds without boundary”, Vestn. YuUrGU. Ser. Matem. modelirovanie i programmirovanie, 15:1 (2022), 112–122
O. G. Kitaeva, “Eksponentsialnye dikhotomii stokhasticheskikh uravnenii sobolevskogo tipa”, J. Comp. Eng. Math., 9:3 (2022), 3–19
O. G. Kitaeva, “Invariant manifolds of the Hoff model in “noise” spaces”, Vestn. YuUrGU. Ser. Matem. modelirovanie i programmirovanie, 14:4 (2021), 24–35