Overdetermined problems for fully nonlinear equations with constant Dirichlet boundary conditions in space forms
Calculus of Variations and Partial Differential Equations(2023)
Abstract
We consider overdetermined problems for two classes of fully nonlinear equations with constant Dirichlet boundary conditions in a bounded domain in space forms. We prove that if the domain is star-shaped, then the solution to the Hessian quotient overdetermined problem is radially symmetric. By establishing a Rellich–Pohožaev type identity for the k -Hessian equation with constant Dirichlet boundary condition, we also show the radial symmetry of the solution to the k -Hessian overdetermined problem for some boundary value without star-shapedness assumption of the domain.
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35N25,58J32,53C40
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