Finite regular invariant measures for Feller processes
1968 ◽
Vol 5
(01)
◽
pp. 203-209
◽
Keyword(s):
In the study of dynamical systems perturbed by noise, it is important to know whether the stochastic process of interest has a stationary distribution. Four necessary and sufficient conditions are formulated for the existence of a finite invariant measure for a Feller process on a σ-compact metric (state) space. These conditions link together stability notions from several fields. The first uses a Lyapunov function reminiscent of Lagrange stability in differential equations; the second depends on Prokhorov's condition for sequential compactness of measures; the third is a recurrence condition on the ergodic averages of the transition operator; and the fourth is analogous to a condition of Ulam and Oxtoby for the nonstochastic case.
2016 ◽
Vol 37
(8)
◽
pp. 2417-2452
◽
1996 ◽
Vol 64
(4)
◽
pp. 707-719
◽
1993 ◽
Vol 45
(3)
◽
pp. 449-469
◽
1967 ◽
Vol 10
(5)
◽
pp. 681-688
◽