We consider the following singularly perturbed Schrödinger equation
where
9acfab3bd89e367be224e0de1709a5c" title="Click to view the MathML source">N≥3,
e50b4927a3be4f7d3" title="Click to view the MathML source">V is a nonnegative continuous potential and the nonlinear term
a48bb3b0" title="Click to view the MathML source">f is of critical growth. In this paper, with the help of a truncation approach, we prove that if
e50b4927a3be4f7d3" title="Click to view the MathML source">V has a positive local minimum, then for small
e6076479ecdb7" title="Click to view the MathML source">ε the problem admits positive solutions which concentrate at an isolated component of positive local minimum points of
e50b4927a3be4f7d3" title="Click to view the MathML source">V as
b7ed26169b9cc7325d86bb9" title="Click to view the MathML source">ε→0. In particular, the potential
e50b4927a3be4f7d3" title="Click to view the MathML source">V is allowed to be either
compactly supported A0; or decay faster than
∣x∣−2 at infinity. Moreover, a general nonlinearity
a48bb3b0" title="Click to view the MathML source">f is involved, i.e., the
monotonicity of
e5f9c9677d" title="Click to view the MathML source">f(s)/s and the
Ambrosetti–Rabinowitz condition are not required.