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On Asymptotics of Solutions of Stochastic Differential Equations with Jumps

Probability 2023-11-22 v1

Abstract

Consider a one-dimensional stochastic differential equation with jumps dX(t)=a(X(t))dt+k=1mbk(X(t))dZk(t),\mathrm d X(t) = a(X(t))\mathrm d t + \sum_{k = 1}^m b_k(X(t-))\mathrm d Z_k(t), where Zk, k{1,2,...,m}Z_k, \ k \in \{1, 2, ..., m\} are independent centered L\'evy processes with finite second moments. We prove that if coefficient a(x)a(x) has certain power asymptotics as xx \to \infty and coefficients bk, k{1,2,...,m},b_k, \ k \in \{1, 2, ..., m\}, satisfy certain growth condition then a solution X(t)X(t) has the same asymptotics as a solution of dx(t)=a(x(t))dt\mathrm d x(t) = a(x(t))\mathrm d t as tt \to \infty a.s.

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Cite

@article{arxiv.2311.12422,
  title  = {On Asymptotics of Solutions of Stochastic Differential Equations with Jumps},
  author = {Viktor Yuskovych},
  journal= {arXiv preprint arXiv:2311.12422},
  year   = {2023}
}

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