On uniqueness and nonuniqueness of the positive Cauchy problem for parabolic equations with unbounded coefficients. Yehuda Pinchover — 1996 Mathematische Zeitschrift
On positive Liouville theorems and asymptotic behavior of solutions of fuchsian type elliptic operators Yehuda Pinchover — 1994 Annales de l'I.H.P. Analyse non linéaire
A Liouville-type theorem for the p-laplacian with potential term Yehuda Pinchover; Achilles Tertikas; Kyril Tintarev — 2008 Annales de l'I.H.P. Analyse non linéaire