# Hokkaido Mathematical Journal

## Hokkaido Mathematical Journal, 36 (2007) pp.245-282

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### Abstract

In this paper, the weak $L\log L$ estimates for the commutators of a class of Littlewood-Paley operators with real parameter are established by using a technique of the sharp function.

MSC(Primary) 47G10 42B25 parameterized Littlewood-Paley operators, commutators, sharp function, Young function, Luxemburg norm, weak $L\log L$ estimates