THE DIRICHLET PROBLEM FOR FULLY NONLINEAR ELLIPTIC EQUATIONS NON-DEGENERATE IN A FIXED DIRECTION

被引:8
|
作者
Mannucci, Paola [1 ]
机构
[1] Univ Padua, Dipartimento Matemat, I-35121 Padua, Italy
关键词
Viscosity solution; comparison principle; degenerate elliptic equation; Dirichlet problem; subelliptic equation; Pucci's operators; Carnot groups; PARTIAL-DIFFERENTIAL EQUATIONS; VISCOSITY SOLUTIONS; HEISENBERG-GROUP; MAXIMUM PRINCIPLE; VECTOR-FIELDS;
D O I
10.3934/cpaa.2014.13.119
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We prove a comparison principle for viscosity solutions of a fully nonlinear equation satisfying a condition of non-degeneracy in a fixed direction. We apply these results to prove that a continuous solution of the corresponding Dirichlet problem exists. To obtain the existence of barrier functions and well-posedness, we find suitable explicit assumptions on the domain and on the ellipticity constants of the operator.
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页码:119 / 133
页数:15
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