Buon giorno a tutti, mercoledì alle ore 17 in Aula Seminari avremo il prossimo seminario di Analisi: https://www.dm.unipi.it/eventi/nikodym-type-spherical-maximal-functions-alan... SPEAKER: Alan Chang, Princeton University TITLE: Nikodym-type spherical maximal functions ABSTRACT: We study L^p bounds on Nikodym maximal functions associated to spheres. In contrast to the spherical maximal functions studied by Stein and Bourgain, our maximal functions are uncentered: for each point in R^n, we take the supremum over a family of spheres containing that point. A presto J. Bellazzini, M.S. Gelli, A. Pluda