Publication Cover
Applicable Analysis
An International Journal
Volume 25, 1987 - Issue 1-2
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Original Articles

Forced oscillations of solutions of second order elliptic equations

Pages 149-155 | Received 24 Mar 1987, Published online: 02 May 2007
 

Abstract

We consider the semllinear elliptic difrerential equation Δu + c(x,u) = f(x) and we show that, under suitable conditions, there exists an infinite sequence of annular domains in which every solution has a zero.

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