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Author:
Journal / Book Title:
Year:
Volume:
Issue:
On Borel-Cantelli Lemma
Author(s):
Luo Xinhua
Pages:
267
-
269
Year:
1983
Issue:
2
Journal:
Journal of University of Science and Technology of China
Keyword:
Borel
;
数学期望
;
示性函数
;
增序列
;
证明过程
;
中第
;
任意性
;
土里
;
舒州
;
公尸
;
Abstract:
<正> 在这篇短文中,我们得到了两个结果,其中第一个结果把Chung的结果推广到事件不独立的情形。设{A
n
}
n=1
∞
是事件列。记I
n
=I
A
n
是事件A
n
的示性函数,J
k
=I
1
+…+I
k
,δ
mn
=P(A
n
)P(A
n
)-P(A
n
A
m
)=E(I
n
)E(I
m
)-E(I
n
I
m
),其中E(I
n
)是I
n
的数学期望,我们有:
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