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Linear instability of entire solutions for a class of non-autonomous elliptic equations

Published online by Cambridge University Press:  08 October 2008

Pierpaolo Esposito
Affiliation:
Dipartimento di Matematica, Università degli Studi ‘Roma Tre’, Largo San Leonardo Murialdo 1, 00146 Roma, Italy ([email protected]).

Extract

We study the effect of the potential |y|α on the stability of entire solutions for elliptic equations on ℝN, N ≥ 2, with exponential or smoooth/singular polynomial nonlinearities. Instability properties are crucial in order to establish regularity of the extremal solution to some related Dirichlet nonlinear eigenvalue problem on bounded domains. As a by-product of our results, we will improve the known results about the regularity of such solutions.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 2008

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