Abstract
In this paper we shall consider the critical elliptic equation \( -\triangle u + \lambda a(x) u = u^{(N+2)/(N-2)}, \ \ x\in \Bbb R^N, \\ u > 0, \quad \int_{\Bbb R^N} |\nabla u|^2 \, dx < + \infty, \quad\quad (0.1)\) where \(\lambda >0, N > 4\) and a(x) is a real continuous, non negative function, not identically zero. By using a local Pohozaev identity, we show that problem (0.1) does not admit a family of solutions \(u_\lambda\) which blows-up and concentrates as \(\lambda \to +\infty\) at some zero point x 0 of a(x) if the order of flatness of the function a(x) at x 0 is \(\beta\in[2,N-4)$ and $N \geq 7\)
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Cingolani, S., Pistoia, A. Nonexistence of single blow-up solutions for a nonlinear Schrödinger equation involving critical Sobolev exponent . Z. angew. Math. Phys. 55, 201–215 (2004). https://doi.org/10.1007/s00033-003-1030-2
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DOI: https://doi.org/10.1007/s00033-003-1030-2