A note on discontinuous problem with a free boundary

We study a nonlinear elliptic problem with discontinuous nonlinearity (P)-Δu=f(u)H(μ-u)inΩ,u=0on∂Ω, where H is the Heaviside’s unit function, f, h are given functions and μ is a positive real parameter. We prove the existence of a unique solution and characterize the corresponding free boundary. Our...

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Bibliographic Details
Main Authors: Sabri Bensid, Sidi Mohammed Bouguima
Format: Article
Language:English
Published: SpringerOpen 2011-04-01
Series:Journal of the Egyptian Mathematical Society
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1110256X11000058