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A limit theorem for almost monotone sequences of random variables

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  • Schürger, Klaus

Abstract

In this paper we consider families (Xm,n) of random variables which satisfy a subadditivity condition of the form X0,n+m = 1. The main purpo is to give conditions which are sufficient for the a.e. convergence of ((1/n)X0,n). Restricting ourselves to the case when (X0,n) has certain monotonicity properties, we derive the desired a.e. convergence of ((1/n)X0,n) under moment hypotheses concerning (Ym,n) which are considerably weaker than those in Derriennic [4] and Liggett [15] (in [4,15] no monotonicity assumptions were imposed on (X0,n)). In particular, it turns out that the sequence (E[Y0,n]) may be allowed to grow almost linearly. We also indicate how the obtained convergence results apply to sequences of random sets which have a certain subadditivity property.

Suggested Citation

  • Schürger, Klaus, 1986. "A limit theorem for almost monotone sequences of random variables," Stochastic Processes and their Applications, Elsevier, vol. 21(2), pages 327-338, February.
  • Handle: RePEc:eee:spapps:v:21:y:1986:i:2:p:327-338
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