On Some Degenerate Elliptic Equations Arising in Geometric Problems

Autor: Fabiana Leoni, Antonio Vitolo, I. Capuzzo Dolcetta
Rok vydání: 2018
Předmět:
Zdroj: Journal of Mathematical Sciences. 233:446-461
ISSN: 1573-8795
1072-3374
DOI: 10.1007/s10958-018-3937-3
Popis: We consider some fully nonlinear degenerate elliptic operators and we investigate the validity of certain properties related to the maximum principle. In particular, we establish the equivalence between the sign propagation property and the strict positivity of a suitably defined generalized principal eigenvalue. Furthermore, we show that even in the degenerate case considered in the present paper, the well-known condition introduced by Keller–Osserman on the zero-order term is necessary and sufficient for the existence of entire weak subsolutions.
Databáze: OpenAIRE