Symmetry theorems via the continuous steiner symmetrization

Using a new approach due to F. Brock called the Steiner symmetrization, we show first that if $u$ is a solution of an overdetermined problem in the divergence form satisfying the Neumann and non-constant Dirichlet boundary conditions, then $Omega$ is an N-ball. In addition, we show that we can relax...

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Bibliographic Details
Main Author: L. Ragoub
Format: Article
Language:English
Published: Texas State University 2000-06-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2000/44/abstr.html