In this paper,we consider the following Kirchhoff type problem with critical exponent {-(a+b∫Ω|▽u|2dx)△u=λuq+u5,inΩ,u=0, on (3)Ω,}where Ω (∈) R3 is a bounded smooth domain,0 < q < 1 and the parameters a,b,λ > 0.We show that there exists a positive constant T4(a) depending only on a,such that for each a > 0 and 0 < λ < T4(a),the above problem has at least one positive solution.The method we used here is based on the Nehari manifold,Ekeland's variational principle and the concentration compactness principle.
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