Fuglede's conjecture for a union of two intervals

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/58657We prove that a union of two intervals in R is a spectral set if and only if it tiles R by translations.9 pagesClassical Analysis and ODEs42A99Fuglede's conjecture for a union of two intervalstext