Divergent Cesaro and Riesz means of Jacobi and Laguerre expansions

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/63266We show that for $δ$ below certain critical indices there are functions whose Jacobi or Laguerre expansions have almost everywhere divergent Cesaro and Riesz means of order $δ$.8 pagesClassical Analysis and ODEs42C05, 33C45, 42C10Divergent Cesaro and Riesz means of Jacobi and Laguerre expansionstext