Authors: Gy Gát U Goginava
Publish Date: 2009/05/08
Volume: 125, Issue: 1-2, Pages: 65-
Abstract
Simon 12 proved that the maximal operator of C αmeans of Fourier series with respect to the WalshKaczmarz system is bounded from the martingale Hardy space H p to the space L p for p 1/1 + α In this paper we prove that this boundedness result does not hold if p ≦ 1/1 + α However in the endpoint case p = 1/1 + α the maximal operator σ αk is bounded from the martingale Hardy space H 1/1+α to the space weakL 1/1+α
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