2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/826Spontaneous magnetization of quark liquid is examined on the analogy with that in electron gas. It is pointed out that quark liquid has potential to be ferromagnetic at rather low densities, around nuclear saturation density. Somme comments are given as for implications on magnetars.9 pages, 5 figuresAstrophysicstext