PageHeader : Funkcialaj Ekvacioj, 38 (1995) 473-489 Title : On Some Degenerate Second Order Equations of Mixed Type AuthorInfo : By AuthorInfo : Pierluigi COLLI and Angelo FAVINI AuthorInfo : (Universita di Pavia and Universita di Bologna, Italy) section : 1. Introduction section : 2. The parabolic case section : 3. The hyperbolic-parabolic case section : References