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Harnack Inequalities and ABP Estimates for Nonlinear Second-Order Elliptic Equations in Unbounded Domains
Author(s) -
Maria Emilia Amendola,
Luca Rossi,
Antonio Vitolo
Publication year - 2008
Publication title -
abstract and applied analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.228
H-Index - 56
eISSN - 1687-0409
pISSN - 1085-3375
DOI - 10.1155/2008/178534
Subject(s) - mathematics , harnack's inequality , harnack's principle , nonlinear system , mathematical analysis , maximum principle , order (exchange) , type (biology) , extension (predicate logic) , term (time) , inequality , boundary (topology) , boundary value problem , elliptic operator , pure mathematics , mathematical optimization , ecology , physics , finance , quantum mechanics , computer science , programming language , economics , biology , optimal control
We are concerned with fully nonlinear uniformly elliptic operators with a superlinear gradient term. We look for local estimates, such as weak Harnack inequality and local maximum principle, and their extension up to the boundary. As applications, we deduce ABP-type estimates and weak maximum principles in general unbounded domains, a strong maximum principle, and a Liouville-type theorem

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