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On averaging principle for diffusion processes with null-recurrent fast component

Author

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  • Khasminskii, R.
  • Krylov, N.

Abstract

An averaging principle is proved for diffusion processes of type (X[var epsilon](t),Y[var epsilon](t)) with null-recurrent fast component X[var epsilon](t). In contrast with positive recurrent setting, the slow component Y[var epsilon](t) alone cannot be approximated by diffusion processes. However, one can approximate the pair (X[var epsilon](t),Y[var epsilon](t)) by a Markov diffusion with coefficients averaged in some sense.

Suggested Citation

  • Khasminskii, R. & Krylov, N., 2001. "On averaging principle for diffusion processes with null-recurrent fast component," Stochastic Processes and their Applications, Elsevier, vol. 93(2), pages 229-240, June.
    • Handle: RePEc:eee:spapps:v:93:y:2001:i:2:p:229-240
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    Citations

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    Cited by:

    1. Krylov, N. V., 2004. "On weak uniqueness for some diffusions with discontinuous coefficients," Stochastic Processes and their Applications, Elsevier, vol. 113(1), pages 37-64, September.
    2. Hu, Mingshang & Wang, Falei, 2021. "Probabilistic approach to singular perturbations of viscosity solutions to nonlinear parabolic PDEs," Stochastic Processes and their Applications, Elsevier, vol. 141(C), pages 139-171.
    3. Zsolt Pajor-Gyulai & Michael Salins, 2016. "On Dynamical Systems Perturbed by a Null-Recurrent Fast Motion: The Continuous Coefficient Case with Independent Driving Noises," Journal of Theoretical Probability, Springer, vol. 29(3), pages 1083-1099, September.
    4. Bahlali, Khaled & Elouaflin, Abouo & Pardoux, Etienne, 2017. "Averaging for BSDEs with null recurrent fast component. Application to homogenization in a non periodic media," Stochastic Processes and their Applications, Elsevier, vol. 127(4), pages 1321-1353.
    5. Pajor-Gyulai, Zs. & Salins, M., 2017. "On dynamical systems perturbed by a null-recurrent motion: The general case," Stochastic Processes and their Applications, Elsevier, vol. 127(6), pages 1960-1997.
    6. Krylov, N. V. & Liptser, R., 2002. "On diffusion approximation with discontinuous coefficients," Stochastic Processes and their Applications, Elsevier, vol. 102(2), pages 235-264, December.

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