Calculus of Variations and Partial Differential Equations ( IF 2.1 ) Pub Date : 2021-04-27 , DOI: 10.1007/s00526-021-01963-1 Sitong Chen , Xianhua Tang
In the present paper, we develop a direct approach to find nontrivial solutions and ground state solutions for the following planar Schrödinger equation:
$$\begin{aligned} {\left\{ \begin{array}{ll} -\Delta u+V(x)u=f(x,u), \;\;&{} x\in {{\mathbb {R}}}^{2},\\ u\in H^1({\mathbb {R}}^2), \end{array}\right. } \end{aligned}$$where V(x) is an 1-periodic function with respect to \(x_1\) and \(x_2\), 0 lies in a gap of the spectrum of \(-\Delta +V\) , and f(x, t) behaves like \(\pm e^{\alpha t^2}\) as \(t\rightarrow \pm \infty \) uniformly on \(x\in {\mathbb {R}}^2\). Our theorems extend and improve the results of de Figueiredo-Miyagaki-Ruf (Calc Var Partial Differ Equ, 3(2):139–153, 1995), of de Figueiredo-do Ó-Ruf (Indiana Univ Math J, 53(4):1037–1054, 2004), of Alves-Souto-Montenegro (Calc Var Partial Differ Equ 43: 537–554, 2012), of Alves-Germano (J Differ Equ 265: 444–477, 2018) and of do Ó-Ruf (NoDEA 13: 167–192, 2006).
中文翻译:
具有不定线性部分和临界增长非线性的平面Schrödinger方程
在本文中,我们开发了一种直接方法来寻找以下平面Schrödinger方程的非平凡解和基态解:
$$ \ begin {aligned} {\ left \ {\ begin {array} {ll}-\ Delta u + V(x)u = f(x,u),\; \;&{} x \ in {{ \ mathbb {R}}} ^ {2},\\ u \ in H ^ 1({\ mathbb {R}} ^ 2),\ end {array} \ right。} \ end {aligned} $$其中V(X)是相对于一个1周期函数\(X_1 \)和\(X_2 \),0在于的频谱的一个间隙\( - \德尔塔+ V \),和˚F(X, t)在\(x \ in {\ mathbb {R}} ^ 2 \)上的行为像\(t \ rightarrow \ pm \ infty \)的行为像\(\ pm e ^ {\ alpha t ^ 2} \)一样。我们的定理扩展和改善了de Figueiredo-doÓ-Ruf(印第安纳大学数学J,53(4)的de Figueiredo-Miyagaki-Ruf(Calc Var Partial Differ Equ,3(2):139–153,1995)的结果。 ):1037–1054,2004年),阿尔维斯-绍托-黑山(Calc Var Partial Differ Equ 43:537-554,2012),阿尔维斯-杰曼诺(J Differ Equ 265:444-477,2018)和doÓ -Ruf(NoDEA 13:167–192,2006)。