Abstract

abstract:

In this paper we prove non-existence and classification results for elliptic fully nonlinear elliptic degenerate conformal equations on certain subdomains of the sphere with prescribed constant mean curvature along its boundary. We also consider non-degenerate equations. Such subdomains are geodesic balls in ${\Bbb S}^m$, punctured balls and annular domains.

Our results extend those of Escobar when $m\geq 3$, and Hang-Wang and Jim\'{e}nez when $m=2$.

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