Optimal non-symmetric Fokker-Planck equation for the convergence to a given equilibrium

نویسندگان

چکیده

<p style='text-indent:20px;'>This paper is concerned with finding Fokker-Planck equations in <inline-formula><tex-math id="M1">\begin{document}$ \mathbb{R}^d $\end{document}</tex-math></inline-formula> the fastest exponential decay towards a given equilibrium. For prescribed, anisotropic Gaussian we determine non-symmetric equation linear drift that shows highest rate for convergence of its solutions At same time it has to allow estimate multiplicative constant arbitrarily close infimum.</p><p style='text-indent:20px;'>Such an "optimal" constructed explicitly diffusion matrix rank one, hence being hypocoercive. In id="M2">\begin{document}$ L^2 $\end{document}</tex-math></inline-formula>–analysis, find maximum equals eigenvalue inverse covariance matrix, and infimum attainable 1, corresponding high-rotational limit drift. This analysis complemented numerical illustrations 2D, includes case study time-dependent coefficient matrices.</p>

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ژورنال

عنوان ژورنال: Kinetic and Related Models

سال: 2022

ISSN: ['1937-5077', '1937-5093']

DOI: https://doi.org/10.3934/krm.2022009