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Strong laws for weighted sums of i.i.d. random variables (II)

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Abstract

Let {X, X_n, nge 1} be a sequence of i.i.d. randomvariables and {a_{ni}, 1le ile n, nge 1 } be an array ofconstants. Let phi (x) be a positive increasing function on(0, infty) satisfying phi(x) uparrow infty quad text{and}quad phi(Cx)=O(phi(x)) for any C>0. When EX=0 and E[phi(|X|)]<infty, some conditions on phi and {a_{ni}} aregiven under whichsum_{i=1}^n a_{ni} X_i to 0 a.s.

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