
arXiv: 2301.11352
We provide a new direct proof of the ℓ 2 \ell ^2 -boundedness of the Discrete Spherical Maximal Function that neither relies on abstract transference theorems (and hence Stein’s Spherical Maximal Function Theorem) nor on delicate asymptotics for the Fourier transform of discrete spheres.
QA Mathematics / matematika, Mathematics - Number Theory, Maximal functions, Littlewood-Paley theory, spherical maximal function, Mathematics - Classical Analysis and ODEs, Classical Analysis and ODEs (math.CA), FOS: Mathematics, discrete Hardy-Littlewood maximal operator, Number Theory (math.NT)
QA Mathematics / matematika, Mathematics - Number Theory, Maximal functions, Littlewood-Paley theory, spherical maximal function, Mathematics - Classical Analysis and ODEs, Classical Analysis and ODEs (math.CA), FOS: Mathematics, discrete Hardy-Littlewood maximal operator, Number Theory (math.NT)
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