English

Sparse domination and $L^{p} \rightarrow L^{q}$ estimates for maximal functions associated with curvature

Classical Analysis and ODEs 2022-02-24 v2 Functional Analysis

Abstract

In this paper, we study maximal functions along some finite type curves and hypersurfaces. In particular, various impacts of non-isotropic dilations are considered. Firstly, we provide a generic scheme that allows us to deduce the sparse domination bounds for global maximal functions under the assumption that the corresponding localized maximal functions satisfy the LpL^{p} improving properties. Secondly, for the localized maximal functions with non-isotropic dilations of curves and hypersurfaces whose curvatures vanish to finite order at some points, we establish the LpLqL^{p}\rightarrow L^{q} bounds (q>p)(q >p). As a corollary, we obtain the weighted inequalities for the corresponding global maximal functions, which generalize the known unweighted estimates.

Keywords

Cite

@article{arxiv.2202.09944,
  title  = {Sparse domination and $L^{p} \rightarrow L^{q}$ estimates for maximal functions associated with curvature},
  author = {Wenjuan Li and Huiju Wang and Yujia Zhai},
  journal= {arXiv preprint arXiv:2202.09944},
  year   = {2022}
}