Nonlinear boundary conditions for elliptic equations
This work is devoted to the study of the elliptic equation $Delta u = f(x,u)$ in a bounded domain $Omegasubset mathbb{R}^n$ with a nonlinear boundary condition. We obtain various existence results applying coincidence degree theory and the method of upper and lower solutions.
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Texas State University
2005-12-01
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Series: | Electronic Journal of Differential Equations |
Subjects: | |
Online Access: | http://ejde.math.txstate.edu/Volumes/2005/144/abstr.html |