Maximal inequalities for bessel processes

Maximal inequalities for bessel processes
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贝塞尔过程的最大不等式

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发表时间:
1998
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通讯作者:
G. Peskir
G. Peskir
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作者:
S. Graversen;G. Peskir

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边界点0为陷阱,0 < < 2为反射边界,2为入口边界。(有关贝塞尔进程的更多信息,我们将参考读者[4],[5],[7],[8],[9],[11],[13]和[14]。)维数为1的贝塞尔过程是次鞅。维数为0的贝塞尔过程是上鞅。然而,维数0 < < 1的贝塞尔过程不是半鞅。维数为n2n的贝塞尔过程Z可以实现为n维布朗运动B(n) = B1(t)的径向部分;……;Bn(t) t 0:
and the boundary point 0 is a trap if 0 , a reflecting boundary if 0 < < 2 , and an entrance boundary if 2 . (For more information about Bessel processes we shall refer the reader to [4], [5], [7], [8], [9], [11], [13] and [14].) The Bessel processes of dimension 1 are submartingales. The Bessel processes of dimension 0 are supermartingales. However, the Bessel processes of dimension 0 < < 1 are not semimartingales. The Bessel process Z of dimension = n 2 N may be realized as the radial part of the n-dimensional Brownian motion B(n) = B1(t); . . . ; Bn(t) t 0 :