Acta mathematica scientia,Series B ›› 2015, Vol. 35 ›› Issue (5): 1163-1188.doi: 10.1016/S0252-9602(15)30047-3

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ORBITAL INSTABILITY OF STANDING WAVES FOR THE GENERALIZED 3D NONLOCAL NONLINEAR SCHRÖDINGER EQUATIONS

Zaihui GAN1,2, Boling GUO3, Xin JIANG4   

  1. 1. Center for Applied Mathematics, Tianjin University, Tianjin 300072, China;
    2. College of Mathematics and Software Science, Sichuan Normal University, Chengdu 610068, China;
    3. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
    4. College of Mathematics and Software Science, Sichuan Normal University, Chengdu 610068, China
  • Received:2013-09-29 Revised:2014-12-26 Online:2015-09-01 Published:2015-09-01
  • Supported by:

    This paper is supported by National Natural Science Foundation of China (11171241), Program for New Century Excellent Talents in University (NCET-12-1058).

Abstract:

The existence and orbital instability of standing waves for the generalized threedimensional nonlocal nonlinear Schrödinger equations is studied. By defining some suitable functionals and a constrained variational problem, we first establish the existence of standing waves, which relys on the inner structure of the equations under consideration to overcome the drawback that nonlocal terms violate the space-scale invariance. We then show the orbital instability of standing waves. The arguments depend upon the conservation laws of the mass and of the energy.

Key words: nonlocal nonlinear Schrö, dinger equations, standing waves, orbital instability

CLC Number: 

  • 35B35
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