A technique of exponential change of mea-sure for Markov processes

A technique of exponential change of mea-sure for Markov processes
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马尔可夫过程测度指数变化技术

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发表时间:
2002
期刊:
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通讯作者:
T. Rolski
T. Rolski
中科院分区:
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文献类型:
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作者:
Z. Palmowski;T. Rolski

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是正函数h2d (a)的真鞅。证明了过程X (t)是概率空间(Ù, F, fF tg, ~ P)上的马尔可夫过程,找到了它的扩展生成器~ a,并给出了D(~ a) 1 / 4 D(a)的充分条件。我们将这个结果应用于连续时间马尔可夫链,分段确定性马尔可夫过程和扩散过程(在这种情况下,h的特殊选择产生经典的Cameron-Martin-Girsanov定理)。
is a true martingale for a positive function h 2 D(A). We demonstrate that the process X (t) is a Markov process on the probability space (Ù, F , fF tg, ~ P), we find its extended generator ~ A and provide sufficient conditions under which D(~ A) 1⁄4 D(A). We apply this result to continuous-time Markov chains, to piecewise deterministic Markov processes and to diffusion processes (in this case a special choice of h yields the classical Cameron–Martin–Girsanov theorem).