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Long-time behavior of solutions to a class of stochastic parabolic equations with homogeneous white noise: Stratonovitch's case
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  • Published: October 1998

Long-time behavior of solutions to a class of stochastic parabolic equations with homogeneous white noise: Stratonovitch's case

  • Igor D. Chueshov1 &
  • Pierre A. Vuillermot2 

Probability Theory and Related Fields volume 112, pages 149–202 (1998)Cite this article

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Abstract.

In this article we prove new results concerning the long-time behavior of random fields that are solutions in some sense to a class of semilinear parabolic equations subjected to a homogeneous and multiplicative white noise. Our main results state that these random fields eventually homogeneize with respect to the spatial variable and finally converge to a non-random global attractor which consists of two spatially and temporally homogeneous asymptotic states. More precisely, we prove that the random fields either stabilize exponentially rapidly with probability one around one of the asymptotic states, or that they set out to oscillate between them. In the first case we can also determine exactly the corresponding Lyapunov exponents. In the second case we prove that the random fields are in fact recurrent in that they can reach every point between the two asymptotic states in a finite time with probability one. In both cases we also interpret our results in terms of stability properties of the global attractor and we provide estimates for the average time that the random fields spend in small neighborhoods of the asymptotic states. Our methods of proof rest upon the use of a suitable regularization of the Brownian motion along with a related Wong-Zakaï approximation procedure.

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Authors and Affiliations

  1. Department of Mechanics and Mathematics, Kharkov State University, 4 Svobody Square, Kharkov, 310077, Ukraine e-mail: chueshov@ilt.kharkov.ua, , , , , , UA

    Igor D. Chueshov

  2. Département de Mathématiques et UMR-CNRS 9973, Université Henri-Poincaré Nancy I, B.P. 239, F-54506 Vandœuvre-lès-Nancy Cedex, France e-mail: vuillerm@iecn.u-nancy.fr, , , , , , FR

    Pierre A. Vuillermot

Authors
  1. Igor D. Chueshov
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  2. Pierre A. Vuillermot
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Received: 8 April 1997/Revised version: 30 January 1998

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Chueshov, I., Vuillermot, P. Long-time behavior of solutions to a class of stochastic parabolic equations with homogeneous white noise: Stratonovitch's case. Probab Theory Relat Fields 112, 149–202 (1998). https://doi.org/10.1007/s004400050186

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  • Issue Date: October 1998

  • DOI: https://doi.org/10.1007/s004400050186

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  • Mathematics Subject Classification (1991): 35 K 55
  • 60 H 30
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