Stochastic Equations Driven by a Cauchy Process

Autor: V. P. Kurenok
Rok vydání: 2008
Předmět:
Zdroj: Stewart N. Ethier, Jin Feng and Richard H. Stockbridge, eds., Markov Processes and Related Topics: A Festschrift for Thomas G. Kurtz (Beachwood, Ohio, USA: Institute of Mathematical Statistics, 2008), 99-106
DOI: 10.1214/074921708000000327
Popis: Using the method of Krylov’s estimates, we prove the existence of (weak) solutions of the one-dimensional stochastic equation dXt=b(Xt−)dZt+a(Xt)dt with arbitrary initial value x0∈ℝ and the driven symmetric Cauchy process Z. The bounded coefficient b is assumed to be of non-degenerate form and the drift a to satisfy the condition |a(x)|≤(1/2)|b(x)| for all x∈ℝ.
Databáze: OpenAIRE