scispace - formally typeset
Open AccessJournal ArticleDOI

Subgeometric rates of convergence for Markov processes under subordination

TLDR
In this paper, the authors studied the convergence rate of a Markov process to its invariant measure with a subordinator and the corresponding Bernstein function and showed that subordination can dramatically change the speed of convergence to equilibrium.
Abstract
We are interested in the rate of convergence of a subordinate Markov process to its invariant measure. Given a subordinator and the corresponding Bernstein function (Laplace exponent), we characterize the convergence rate of the subordinate Markov process; the key ingredients are the rate of convergence of the original process and the (inverse of the) Bernstein function. At a technical level, the crucial point is to bound three types of moment (subexponential, algebraic, and logarithmic) for subordinators as time t tends to ∞. We also discuss some concrete models and we show that subordination can dramatically change the speed of convergence to equilibrium.

read more

Citations
More filters
Posted Content

Convolution inequalities for Besov and Triebel--Lizorkin spaces, and applications to convolution semigroups

TL;DR: In this paper, the authors study the mapping properties of convolution semigroups, considered as operators on the function spaces $A_{p,q}^s, $A \in \{B,F\}$.
Posted Content

On Sub-Geometric Ergodicity of Diffusion Processes

TL;DR: In this paper, the ergodicity properties of a diffusion process given through an Ito stochastic differential equation are discussed. And the authors identify conditions on the drift and diffusion coefficients which result in sub-geometric ergodness of the corresponding semigroup with respect to the total variation distance.
Posted Content

Log-Harnack Inequalities for Markov Semigroups Generated by Non-Local Gruschin Type Operators

TL;DR: In this paper, the log-Harnack inequalities for Markov semigroups generated by a class of non-local Gruschin type operators are established based on coupling in two steps and the regularization approximations of the underlying subordinators.
Posted Content

Subexponential upper and lower bounds in Wasserstein distance for Markov processes

TL;DR: Applications of these results to specific processes are presented, including Langevin tempered diffusion processes, piecewise Ornstein-Uhlenbeck processes with jumps under constant and stationary Markov controls, and backward recurrence time chains, for which they provide a sharp characterization of the rate of convergence via matching upper and lower bounds.
Posted Content

Bochner's Subordionation and Fractional Caloric Smoothing in Besov and Triebel--Lizorkin Spaces.

V. Knopova, +1 more
- 19 Aug 2019 - 
TL;DR: In this article, the authors used Bochner's subordination technique to obtain caloric smoothing estimates in Besov- and Triebel-Lizorkin spaces, extending known smoothing results for the Gaus--Weierstras, Cauchy--Poisson and higher-order generalized Gaus-Weierstra semigroups.
References
More filters
Book

Markov Chains and Stochastic Stability

TL;DR: This second edition reflects the same discipline and style that marked out the original and helped it to become a classic: proofs are rigorous and concise, the range of applications is broad and knowledgeable, and key ideas are accessible to practitioners with limited mathematical background.
Journal ArticleDOI

Stability of Markovian processes III: Foster–Lyapunov criteria for continuous-time processes

TL;DR: In this paper, the authors developed criteria for continuous-parameter Markovian processes on general state spaces, based on Foster-Lyapunov inequalities for the extended generator, and applied the criteria to several specific processes, including linear stochastic systems under nonlinear feedback, work-modulated queues, general release storage processes and risk processes.
Book

From Markov Chains to Non-Equilibrium Particle Systems

Mu-Fa Chen
TL;DR: In this paper, a representative work of Chinese probabilists on probability theory and its applications in physics is presented, including the results of jump Markov processes, as well as Markov interacting processes with noncompact states.
Book

Bernstein Functions: Theory and Applications

TL;DR: In this paper, the authors present a self-contained and unified approach to Bernstein functions and closely related function classes, bringing together old and establishing new connections, and an extensive list of complete Bernstein functions with their representations is provided.
Journal ArticleDOI

Stability of Markovian processes II: continuous-time processes and sampled chains

TL;DR: In this paper, the authors extend the results of Meyn and Tweedie (1992b) from discrete-time parameter to continuous-parameter Markovian processes evolving on a topological space, and prove connections between these and standard probabilistic recurrence concepts.