Conditional Strong Law of Large Numbers under <i>G</i>-Expectations

Abstract

In this paper, we investigate two types of the conditional strong law of large numbers with a new notion of conditionally independent random variables under G-expectation which are related to the symmetry G-function. Our limit theorem demonstrates that the cluster points of empirical averages fall within the bounds of the lower and upper conditional expectations with lower probability one. Moreover, for conditionally independent random variables with identical conditional distributions, we show the existence of two cluster points of empirical averages that correspond to the essential minimum and essential maximum expectations, respectively, with G-capacity one.

Keywords

• conditional <i>G</i>-expectation
• conditional <i>G</i>-capacities
• conditional Borel–Cantelli lemma
• conditional strong law of large numbers
• symmetry matrix