A note on the Birkhoff ergodic theorem

N Sandrić - Results in mathematics, 2017 - Springer
The classical Birkhoff ergodic theorem states that for an ergodic Markov process the limiting
behaviour of the time average of a function (having finite p-th moment, p ≥ 1 p≥ 1, with …

Semigroup properties of solutions of SDEs driven by Lévy processes with independent coordinates

T Kulczycki, M Ryznar - Stochastic Processes and their Applications, 2020 - Elsevier
We study the stochastic differential equation d X t= A (X t−) d Z t, X 0= x, where Z t=(Z t (1),…,
Z t (d)) T and Z t (1),…, Z t (d) are independent one-dimensional Lévy processes with …

Cauchy problem of the non-self-adjoint Gauss–Laguerre semigroups and uniform bounds for generalized Laguerre polynomials

P Patie, M Savov - Journal of Spectral Theory, 2017 - ems.press
We propose a new approach to construct the eigenvalue expansion in a weighted Hilbert
space of the solution to the Cauchy problem associated to Gauss–Laguerre invariant …

[HTML][HTML] Homogenization of periodic diffusion with small jumps

N Sandrić - Journal of mathematical analysis and applications, 2016 - Elsevier
In this paper, we study the homogenization of a diffusion process with jumps, that is, Feller
process generated by an integro-differential operator. This problem is closely related to the …

Stationary distribution of stochastic population dynamics with infinite delay

H Yang, F Wu, PE Kloeden - Journal of Differential Equations, 2022 - Elsevier
This paper examines the stationary distribution of the stochastic Lotka-Volterra model with
infinite delay. Since the solutions of stochastic functional or delay differential equations …

Local densities for a class of degenerate diffusions

A Lanconelli, S Pagliarani, A Pascucci - 2020 - projecteuclid.org
We study a class of R^d-valued continuous strong Markov processes that are generated,
only locally, by an ultra-parabolic operator with coefficients that are regular wrt the intrinsic …

[HTML][HTML] Progressive intrinsic ultracontractivity and heat kernel estimates for non-local Schrödinger operators

K Kaleta, RL Schilling - Journal of Functional Analysis, 2020 - Elsevier
We study the long-time asymptotic behaviour of semigroups generated by non-local
Schrödinger operators of the form H=− L+ V; the free operator L is the generator of a …

[PDF][PDF] Scale invariant boundary Harnack principle at infinity for Feller processes

P Kim, R Song, Z Vondraček - arXiv preprint arXiv:1510.04569, 2015 - arxiv.org
arXiv:1510.04569v2 [math.PR] 15 Nov 2015 Page 1 arXiv:1510.04569v2 [math.PR] 15 Nov
2015 Scale invariant boundary Harnack principle at infinity for Feller processes Panki Kim∗ …

Itô-SDE MCMC method for Bayesian characterization of errors associated with data limitations in stochastic expansion methods for uncertainty quantification

M Arnst, BA Alvarez, JP Ponthot, R Boman - Journal of Computational …, 2017 - Elsevier
This paper is concerned with the characterization and the propagation of errors associated
with data limitations in polynomial-chaos-based stochastic methods for uncertainty …

Long-time behavior for a class of Feller processes

N Sandrić - Transactions of the American mathematical society, 2016 - ams.org
In this paper, as a main result, we derive a Chung-Fuchs type condition for the recurrence of
Feller processes associated with pseudo-differential operators. In the Lévy process case …