{ "id": "1908.01038", "version": "v1", "published": "2019-08-02T20:13:45.000Z", "updated": "2019-08-02T20:13:45.000Z", "title": "Orbital Stability of Standing Waves for Fractional Hartree Equation with Unbounded Potentials", "authors": [ "Jian Zhang", "Shijun Zheng", "Shihui Zhu" ], "comment": "11 pages", "journal": "Contemporary Mathematics 2019; Volume 725. ISBN: 978-1-4704-4109-8", "categories": [ "math.AP", "math-ph", "math.MP" ], "abstract": "We prove the existence of the set of ground states in a suitable energy space $\\Sigma^s=\\{u: \\int_{\\mathbb{R}^N} \\bar{u}(-\\Delta+m^2)^s u+V |u|^2<\\infty\\}$, $s\\in (0,\\frac{N}{2})$ for the mass-subcritical nonlinear fractional Hartree equation with unbounded potentials. As a consequence we obtain, as a priori result, the orbital stability of the set of standing waves. The main ingredient is the observation that $\\Sigma^s$ is compactly embedded in $L^2$. This enables us to apply the concentration compactness argument in the works of Cazenave-Lions and Zhang, namely, relative compactness for any minimizing sequence in the energy space.", "revisions": [ { "version": "v1", "updated": "2019-08-02T20:13:45.000Z" } ], "analyses": { "subjects": [ "35Q55" ], "keywords": [ "orbital stability", "standing waves", "unbounded potentials", "mass-subcritical nonlinear fractional hartree equation", "energy space" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable" } } }