Hostname: page-component-77c89778f8-gvh9x Total loading time: 0 Render date: 2024-07-22T22:06:49.224Z Has data issue: false hasContentIssue false

Ergodic theorems for random sets with density zero

Published online by Cambridge University Press:  19 September 2008

Yenkun Huang
Affiliation:
Department of Mathematics, National Cheng-Kung University, Tainan, Taiwan, Republic of China

Abstract

We generalize a result of Bourgain and a result of Huang. We also give a positive solution to A. Bellow's question: the a.e. convergence of the averages for σn = 1/n. On the other hand, we establish a sufficient and necessary condition for random sets in Z+ with asymptotic density zero which almost surely satisfy a mean ergodic theorem.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1994

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Bellow, A. & Losert, V.. On sequences of density zero in ergodic theory. Contemp. Math. 26 (1984), 4960.CrossRefGoogle Scholar
[2]Bourgain, J.. On the maximal ergodic theorem for certain subsets of integers. Isr. J. Math. 61 (1988), 3972.CrossRefGoogle Scholar
[3]Chung, Kai Lai. A Course In Probability Theory Second Edition. Academic Press: New York, 1974.Google Scholar
[4]Huang, Yenkun. Random sets for the pointwise ergodic theorem. Ergod. Th. & Dynam. Sys. 12 (1992), 8594.CrossRefGoogle Scholar