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带漂移布朗运动的一个局部时的Laplace变换

Laplace transform of one local time on brownian motion with drift
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摘要 在Borodin和Salminen(2002)文献中有关带漂移布朗运动占位时的Laplace变换结果的基础上,运用Li等(2014)计算局部时的方法,推出了带漂移布朗运动在独立指数时间e_q前,及停留在0处的局部时的Laplace变换表达式Ee^(-λl(e_q,0))=lima→0I(λ/a;0,a,e_q)=((2q+μ~2)^(1/2))/(λ+(2q+μ~2)^(1/2))。当μ=0时,本文结果与标准布朗运动的结果吻合。 On the basis of the results in Borodin and Salminen(2002),the approach in Li et al.(2014)is adopted toconsider the local time at0before independent exponential time eq,and the Laplace transform of local time on Brownianmotion with drift is obtained.The result is2(,0)022e lim(;0,,)2l eqa qE I a e qa qλλμλμ?→+==++.Whenμ=0,the resultconsists with classical result of Brownian motion.
作者 吴婵 陈晔 Wu Chan;Chen Ye(College of Mathematics and Statistics, Changsha University of Science and Technology, Changsha 410114, China;College of Mathematics and Computational Science, Hunan University of Arts and Science, Changde 415000,China)
出处 《湖南文理学院学报(自然科学版)》 CAS 2017年第2期9-11,共3页 Journal of Hunan University of Arts and Science(Science and Technology)
基金 国家自然科学基金(11571052 11171044) 湖南省自然科学基金(2016JJ4061) 湖南省研究生科研创新项目(C-X2016B417) 湖南文理学院科学研究项目(15ZD05)
关键词 局部时 LAPLACE变换 带漂移的布朗运动 local time Laplace transform brownian motion with drift
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