2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/72388We find minimal regularity conditions on the coefficients of a parabolic operator, ensuring that no nontrivial solution tends to zero faster than any exponential.10 pagesAnalysis of PDEs35K10; 35B40On the absence of rapidly decaying solutions for parabolic operators whose coefficients are non-Lipschitz continuous in timetext