共查询到20条相似文献,搜索用时 31 毫秒
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Péter Kevei 《Stochastic Processes and their Applications》2018,128(1):156-181
We investigate ergodic properties of the solution of the SDE , where is a bivariate Lévy process. This class of processes includes the generalized Ornstein–Uhlenbeck processes. We provide sufficient conditions for ergodicity, and for subexponential and exponential convergence to the invariant probability measure. We use the Foster–Lyapunov method. The drift conditions are obtained using the explicit form of the generator of the continuous process. In some special cases the optimality of our results can be shown. 相似文献
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Andrey B. Kupavskii Andrei M. Raigorodskii Maria V. Titova 《Discrete Mathematics》2013,313(22):2566-2574
In this paper we study the distance Ramsey number . The distance Ramsey number is the minimum number such that for any graph on vertices, either contains an induced -vertex subgraph isomorphic to a distance graph in or contains an induced -vertex subgraph isomorphic to the distance graph in . We obtain the upper and lower bounds on , which are similar to the bounds for the classical Ramsey number . 相似文献
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Nicolas Nisse 《Discrete Applied Mathematics》2009,157(12):2603-2610
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《Applied Mathematics Letters》2007,20(11):1167-1173
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