2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70145We continue here with previous investigations on the global behavior of general type non-linear wave equations for a class of small, scale-invariant initial data. The method is based on the use of a new set of Strichartz estimates for the linear wave equation which incorporates extra weighted smoothness assumptions with respect to the angular variable, along with the construction of appropriate micro-local function spaces which take into account this type of additional regularity.50 pages, 1 figureAnalysis of PDEs35L05text