Multi-parameter singular Radon transforms III: real analytic surfaces

Details Multi-parameter singular Radon transforms III: real analytic surfaces Multi-parameter singular Radon transforms III: real analytic surfaces

2011-05-23

arxiv.org/abs/1105.4589v1

Mathematics

Classical Analysis and ODEs

22 pages, part 3 in a three part series

Scientific paper

The goal of this paper is to study operators of the form, \[ Tf(x)= \psi(x)\int f(\gamma_t(x))K(t)\: dt, \] where $\gamma$ is a real analytic function defined on a neighborhood of the origin in $(t,x)\in \R^N\times \R^n$, satisfying $\gamma_0(x)\equiv x$, $\psi$ is a cutoff function supported near $0\in \R^n$, and $K$ is a "multi-parameter singular kernel" supported near $0\in \R^N$. A main example is when $K$ is a "product kernel." We also study maximal operators of the form, \[ \mathcal{M} f(x) = \psi(x)\sup_{0<\delta_1,..., \delta_N<<1} \int_{|t|<1} |f(\gamma_{\delta_1 t_1,...,\delta_N t_N}(x))|\: dt. \] We show that $\mathcal{M}$ is bounded on $L^p$ ($1

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