Sparse bounds for the discrete spherical maximal functions
We prove sparse bounds for the spherical maximal operator of Magyar, Stein and Wainger. The bounds are conjecturally sharp, and contain an endpoint estimate. The new method of proof is inspired by ones by Bourgain and Ionescu, is very efficient, and has not been used in the proof of sparse bounds be...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | Costa Rica |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| Idioma: | inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/85154 |
| Acceso en línea: | https://msp.org/paa/2020/2-1/p04.xhtml https://hdl.handle.net/10669/85154 |
| Access Level: | acceso abierto |
| Palabra clave: | Sparse Discrete Spherical average |
| Sumario: | We prove sparse bounds for the spherical maximal operator of Magyar, Stein and Wainger. The bounds are conjecturally sharp, and contain an endpoint estimate. The new method of proof is inspired by ones by Bourgain and Ionescu, is very efficient, and has not been used in the proof of sparse bounds before. The Hardy-Littlewood Circle method is used to decompose the multiplier into major and minor arc components. The efficiency arises as one only needs a single estimate on each element of the decomposition. |
|---|