2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/108090Multi-periodic pulsation phenomena of ZZ Ceti variable stars are analyzed within the context of a fractal cosmological paradigm that emphasizes discrete self-similarity in nature. A quantitative test comparing relevant stellar and atomic periods provides preliminary support for the analysis. This paper completes a 3-part series that explores the possibility of discrete cosmological self-similarity in variable stars; the first and second papers discussed RR Lyrae and delta Scuti stars, respectively.17 pages, 4 figures, 7 tables, comments welcomeAstrophysicstext