Acta mathematica scientia,Series A ›› 2023, Vol. 43 ›› Issue (5): 1350-1372.

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On the Blow-Up Solutions of Inhomogeneous Nonlinear Schrödinger Equation with a Partial Confinement

Jian Hui(),Gong Min(),Wang Li*()   

  1. School of Science, East China Jiaotong University, Nanchang 330013
  • Received:2020-09-30 Revised:2023-03-24 Online:2023-10-26 Published:2023-08-09
  • Contact: Li Wang E-mail:jianhui0711141@163.com;gluminous@163.com;wangli.423@163.com
  • Supported by:
    NSFC(11761032);NSFC(12161038);Jiangxi Provincial Natural Science Foundation(20212BAB211006);Jiangxi Provincial Natural Science Foundation(20202BABL211004);Science and Technology Project of Education Department of Jiangxi Province(GJJ212204)

Abstract:

This paper is devoted to the Cauchy problem of inhomogeneous nonlinear Schrödinger equation in the presence of a partial confinement, which is an important model in Bose-Einstein condensates. Combining the variational characterization of the ground state of a nonlinear elliptic equation and the conservations of mass and energy, we first obtain a global solution and show the existence of blow-up solutions for some special initial data by scaling techniques. Then, we study the $L^2$-concentration phenomenon for the blow-up solutions. Finally, we apply the variational arguments connected to the above ground state to investigate the dynamics of $L^2$-minimal blow-up solutions, i.e., the limiting profile, mass-concentration and blow-up rate of the blow-up solutions with minimal mass. We extend the global existence and blow-up results of Zhang[34] to the case of inhomogeneous nonlinearities and improve partial results of Pan and Zhang[23] to space dimensions $N\geq2$ in the inhomogeneous case.

Key words: Inhomogeneous nonlinear Schr?dinger equation, Partial confinement, Blow-up, Mass-concentration, Limiting

CLC Number: 

  • O175.23
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