Affiliation:
1. School of Mathematics and Statistics, Central South University, Changsha, 410083 Hunan, P. R. China
2. School of Mathematics and Statistics, Hunan University of Technology and Business, Changsha, 410205 Hunan, P. R. China
Abstract
Abstract
In this paper we consider the nonlinear Chern-Simons-Schrödinger equations with general nonlinearity
$$\begin{array}{}
\displaystyle
-{\it\Delta} u+\lambda V(|x|)u+\left(\frac{h^2(|x|)}{|x|^2}+\int\limits^{\infty}_{|x|}\frac{h(s)}{s}u^2(s)ds\right)u=f(u),\,\, x\in\mathbb R^2,
\end{array}$$
where λ > 0, V is an external potential and
$$\begin{array}{}
\displaystyle
h(s)=\frac{1}{2}\int\limits^s_0ru^2(r)dr=\frac{1}{4\pi}\int\limits_{B_s}u^2(x)dx
\end{array}$$
is the so-called Chern-Simons term. Assuming that the external potential V is nonnegative continuous function with a potential well Ω := int V–1(0) consisting of k + 1 disjoint components Ω0, Ω1, Ω2 ⋯, Ωk, and the nonlinearity f has a general subcritical growth condition, we are able to establish the existence of sign-changing multi-bump solutions by using variational methods. Moreover, the concentration behavior of solutions as λ → +∞ are also considered.
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