Abstract
For a domain \({\Omega \subset \mathbb{R}^{N}}\) we consider the equation
with zero Dirichlet boundary conditions and \({p\in(2, 2^*)}\). Here \({V \geqq 0}\) and Q n are bounded functions that are positive in a region contained in \({\Omega}\) and negative outside, and such that the sets {Q n > 0} shrink to a point \({x_0 \in \Omega}\) as \({n \to \infty}\). We show that if u n is a nontrivial solution corresponding to Q n , then the sequence (u n ) concentrates at x 0 with respect to the H 1 and certain L q-norms. We also show that if the sets {Q n > 0} shrink to two points and u n are ground state solutions, then they concentrate at one of these points.
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Communicated by P. Rabinowitz
Nils Aickermann was supported by CONACYT grant 129847 and PAPIIT-DGAPA-UNAM grants IN101209 and IN106612 (Mexico). Aindrzej Sizulkin was supported in part by the Swedish Research Council.
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Ackermann, N., Szulkin, A. A Concentration Phenomenon for Semilinear Elliptic Equations. Arch Rational Mech Anal 207, 1075–1089 (2013). https://doi.org/10.1007/s00205-012-0589-1
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DOI: https://doi.org/10.1007/s00205-012-0589-1