Radial processes on RCD⁎(K,N) spaces
Radial processes on RCD⁎(K,N) spaces
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DOI:
10.1016/j.matpur.2018.12.008
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发表时间:
2019-06
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影响因子:
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通讯作者:
Kazumasa Kuwada;Kazuhrio Kuwae
中科院分区:
文献类型:
--
作者:
Kazumasa Kuwada;Kazuhrio Kuwae
In this paper, we show a stochastic expression for the radial processes of Brownian motions on RCD⁎(K, N)-spaces. It corresponds to the one on Riemannian manifolds. The expression holds for all starting points without exceptional sets. It can be extended beyond the hitting time to the reference point provided the reference point is sufficiently regular. We further prove that the regularity condition is satisfied for almost every reference point. Our results extend the comparison theorems over Alexandrov spaces proved in [36],[29].