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## Endpoint bounds of square functions associated with Hankel multipliers

### Tom 228 / 2015

Studia Mathematica 228 (2015), 123-151 MSC: Primary 42B15; Secondary 42B25. DOI: 10.4064/sm228-2-3

#### Streszczenie

We prove endpoint bounds for the square function associated with radial Fourier multipliers acting on $L^{p}$ radial functions. This is a consequence of endpoint bounds for a corresponding square function for Hankel multipliers. We obtain a sharp Marcinkiewicz-type multiplier theorem for multivariate Hankel multipliers and $L^p$ bounds of maximal operators generated by Hankel multipliers as corollaries. The proof is built on techniques developed by Garrigós and Seeger for characterizations of Hankel multipliers.

#### Autorzy

• Jongchon KimDepartment of Mathematics