reference
- Nirenberg , L. 1959 . On elliptic partial differential equations . Ann. Sc. Norm. Sup. Pisa , 13 : 116 – 162 .
- Gagliardo , E. 1959 . Ulterioro proprietà di alcune classi di funzioni in pi[ugrave] variabili . Ric. mat. Napoli , 8 : 24 – 51 .
- Nirenberg , L. 1966 . An extended interpolation inequality . Ann. Sc. Norm. Sup. Pisa , 20 : 733 – 737 .
- SKRYPNIK , I.V. 1978 . On quasilinear elliptic high order equations with continuous generalized solutions, in Russian . Differential Equations , 14 : 1104 – 1118 .
- Nicolosi F. Skrypnik I.V. Nirenberg-Gagliardo interpolation inequality and regularity of solutions of nonlinear higher order equations 1996 Ukrainian Math. J. (to appear)
- Nicolosi , F. 1980 . Soluzioni deboli dei problemi al contorno per operatori parabolici che possono degenerare . Ann. Mat. Pura Appl , 125 : 135 – 155 .
- GUGLIELMINO , F. and NICOLOSI , F. 1987 . Sulle W-soluzioni dei problemi al contorno per operatori ellittici degeneri . Ric. mat , 36 : 59 – 72 .
- Drabek , P. and Nicolosi , F. 1993 . Existence of bounded solutions for some degenerated quasilinear elliptic equations . Ann. Mat. Pura Appl , 165 : 217 – 238 .
- Lions , J.L. 1969 . Quelques Méthodes de Résolution des Problèmes aux Limites Non Linéaires . Dunod ,