机构地区: 复旦大学数学科学学院数学研究所
出 处: 《复旦学报(自然科学版)》 2005年第3期457-461,476,共6页
摘 要: 讨论p adics上支撑有界的L啨vy过程跑遍其支撑球中所有pn 球所需的时间问题.用概率的方法在单原子初始测度的情况下给出该时间分布和期望的表达式,在一般初始测度的情况下给出该时间的分布密度估计. It is investigated that properties of the time spent by a Lévy process on a p-adics with bounded support when it runs over all the p^n-balls.In case of a single atomic initial measure,exact expressions for the distribution and the expectation of this time are given.In general case,some estimates for its density of distribution are given.