{ "id": "1904.02540", "version": "v1", "published": "2019-04-04T13:26:29.000Z", "updated": "2019-04-04T13:26:29.000Z", "title": "Orbital Stability of Standing Waves for BNLS]{Orbital Stability of Standing Waves for a fourth-order nonlinear Schrödinger equation with the mixed dispersions", "authors": [ "Tingjian Luo", "Shijun Zheng", "Shihui Zhu" ], "categories": [ "math.AP" ], "abstract": "In this paper, we study the standing wave solutions of the bi-harmonic nonlinear Schr\\\"{o}dinger equation with the Laplacian term (BNLS). By taking into account the role of second-order dispersion term in the propagation of intense laser beams in a bulk medium with Kerr nonlinearity, we prove that in the mass-subcritical regime $p\\in (1,1+\\frac{8}{d})$, there exist orbitally stable standing waves for BNLS, when $\\mu\\geq 0$, or $-\\lambda_0\\le\\mu<0$, for some $\\lambda_0>0$. Moreover, we prove that in the mass-critical case $p=1+\\frac{8}{d}$, the BNLS is orbital stable when $-\\lambda_1\\le\\mu<0$, for some $\\lambda_1>0$, and the initial data is below the ground state for the bihamonic operator. This shows that the sign of the second-order dispersion has crucial effect on the existence of orbitally stable standing waves for the BNLS with the mixed dispersions.", "revisions": [ { "version": "v1", "updated": "2019-04-04T13:26:29.000Z" } ], "analyses": { "keywords": [ "orbital stability", "fourth-order nonlinear schrödinger equation", "mixed dispersions", "orbitally stable standing waves", "second-order dispersion term" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }