{ "id": "2205.10514", "version": "v1", "published": "2022-05-21T06:34:32.000Z", "updated": "2022-05-21T06:34:32.000Z", "title": "Linear stability of the elliptic relative equilibria for the restricted $4$-body problem: the Euler case", "authors": [ "Bowen Liu", "Qinglong Zhou" ], "comment": "23 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1907.13475; substantial text overlap with arXiv:1206.6162 by other authors", "categories": [ "math.DS", "math-ph", "math.MP" ], "abstract": "In this paper, we consider the elliptic relative equilibria of the restricted $4$-body problems, where the three primaries form an Euler collinear configuration and the four bodies span $\\mathbf{R}^2$. We obtain the symplectic reduction to the general restricted $N$-body problem. By analyzing the relationship between this restricted $4$-body problems and the elliptic Lagrangian solutions, we obtain the linear stability of the restricted $4$-body problem by the $\\omega$-Maslov index. Via numerical computations, we also obtain conditions of the stability on the mass parameters for the symmetric cases.", "revisions": [ { "version": "v1", "updated": "2022-05-21T06:34:32.000Z" } ], "analyses": { "subjects": [ "70F10", "70H14", "34C25" ], "keywords": [ "body problem", "elliptic relative equilibria", "linear stability", "euler case", "euler collinear configuration" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }