Abstract.
Let B be the unit ball of \( \mathbb{R}^N \), \( N\geq 3 \), and \( a,f:\mathbb{R}\rightarrow \mathbb{R} \) be two smooth functions. For \( \eps>0 \) small, the equation¶¶\( \Delta u+a(|x|)u=N(N-2)f(|x|)u^{\frac{N+2}{N-2}-\epsilon}\mbox{in }B,\mbox{ on }\partial B\qquad (1) \)¶¶has a positive radially symmetrical solution \(\ue\). We describe the asymptotic behaviour of (u ε as \( \epsilon\to 0 \). We also recover existence results for the critical equation.
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Robert, F. Asymptotic behaviour of a nonlinear elliptic equation with critical Sobolev exponent: The radial case II. NoDEA, Nonlinear differ. equ. appl. 9, 361–384 (2002). https://doi.org/10.1007/s00030-002-8133-x
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DOI: https://doi.org/10.1007/s00030-002-8133-x