摘要
设d是一个正整数,N^d是d-维正整数格点.设{X_n,n∈N^d}是一同分布的负相伴随机场,记,如果r>2,EX_1=0和σ~2=Var(X_1),则存在一个正数M:=100((r-2)(1+σ~2))^(1/2)
Let d be a positive ingter and N^d denote the d-dimensional lattice of positive integers. Let {xn,n∈N^d) be a same distribution NA random fields, put Sn=∑Xk,Sn^(k)=Sn-Xk, if r〉2, EX1=0 and σ^2=Var(X1),then there exists a positive constant such that the following is equivalent:
(I) E︱X1︱^r(log︱X︱)^d-1-r/2〈∞;
(Ⅱ) ∑︱n︱^r/2-2P(max︱Sn^(k)︱≥(2^d+1)ε ︱n︱log︱n︱)〈∞,Vε〉M;
(Ⅲ) ∑︱n︱^r/2-2P(max︱Sk︱≥ε ︱n︱log︱n︱)〈∞,Vε〉M.
出处
《数学物理学报(A辑)》
CSCD
北大核心
2009年第4期1138-1143,共6页
Acta Mathematica Scientia
基金
国家自然科学基金(10471126)资助
关键词
NA
随机场
对数律
收敛性.
NA
Random fields
Law of logarithm
Convergence rate.