Kolmogorov equation and large-time behaviour for fractional brownian motion driven linear sde’s

Author: Vyroai Michal  

Publisher: Springer Publishing Company

ISSN: 0862-7940

Source: Applications of Mathematics, Vol.50, Iss.1, 2005-02, pp. : 63-81

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Abstract

We consider a stochastic process X tx which solves an equation $$dX_t^x = AX_t^x dt + \Phi dB_t^H \quad X_0^x = x$$ where A and Φ are real matrices and BH is a fractional Brownian motion with Hurst parameter H ∈ (1/2,1). The Kolmogorov backward equation for the function u(t,x) = $$H \in \left( {{1 \mathord{\left/ {\vphantom {1 {2,1}}} \right. \kern-\nulldelimiterspace} {2,1}}} \right)$$ f(X tx ) is derived and exponential convergence of probability distributions of solutions to the limit measure is established.