2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/60750We explicitly calculate fundamental solutions for the Tricomi operator relative to a point in the hyperbolic region and show that these solutions originate from the hypergeometric function F(1/6,1/6;1;z).Analysis of PDEsClassical Analysis and ODEs35M10; 33C05text