Título inglés |
Lp-bounds for spherical maximal operators on Zn. |
Título español |
Límites Lp para operadores maximales esféricos sobre Zn. |
Autor/es |
Magyar, Akos |
Organización |
Dep. Math. California Inst. Technol., Pasadena (California), Estados Unidos |
Revista |
0213-2230 |
Publicación |
1997, 13 (2): 307-317, 4 Ref. |
Tipo de documento |
articulo |
Idioma |
Inglés |
Resumen inglés |
We prove analogue statements of the spherical maximal theorem of E. M. Stein, for the lattice points Zn. We decompose the discrete spherical measures as an integral of Gaussian kernels st,ε(x) = e2πi|x|2(t + iε). By using Minkowski's integral inequality it is enough to prove Lp-bounds for the corresponding convolution operators. The proof is then based on L2-estimates by analysing the Fourier transforms ^st,ε(ξ), which can be handled by making use of the circle method for exponential sums. As a corollary one obtains some regularity of the distribution of lattice points on small spherical caps. |
Clasificación UNESCO |
120201 |
Palabras clave español |
Operadores integrales ; Operadores maximales ; Espacios LP ; Integrales singulares |
Código MathReviews |
MR1617657 |
Código Z-Math |
Zbl 0893.42011 |
Acceso al artículo completo |