2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59454Stationary Gaussian generalized random processes having slowly decreasing spectral densities give rise to product systems in the sense of William Arveson (basically, continuous tensor product systems of Hilbert spaces). A continuum of nonisomorphic unitless product systems is produced, answering a question of Arveson.56 pages, LaTeX2eFunctional AnalysisProbability46L55; 60G20, 60G30From slightly coloured noises to unitless product systemstext