MAXIMAL FUNCTIONS IN VARIABLE EXPONENT SPACES: LIMITING CASES OF THE EXPONENT

Lars Diening, Petteri Harjulehto, Peter Hästö, Yoshihiro Mizuta, Tetsu Shimomura

PUB – Publications at Bielefeld University (Bielefeld University) · 2009 · 97 citations · 23 references

Concepts

Abstract

In this paper we study the Hardy-Littlewood maximal operator in variable ex- ponent spaces when the exponent is not assumed to be bounded away from 1 and 1. Within the framework of Orlicz-Musielak spaces, we characterize the function space X with the property that Mf 2 L p(¢) if and only if f 2 X, under the assumptions that p is log-Holder continuous and 1 6 p i 6 p + 6 1.

References

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