{ "id": "2303.12508", "version": "v1", "published": "2023-03-22T12:30:19.000Z", "updated": "2023-03-22T12:30:19.000Z", "title": "Classification of orbit closures in the variety of 4-dimensional symplectic Lie algebras", "authors": [ "Edison Alberto Fernández-Culma", "Nadina Elizabeth Rojas" ], "comment": "20 pages", "categories": [ "math.RT", "math.DG" ], "abstract": "The aim of this paper is to study the natural action of the real symplectic group, $\\operatorname{Sp}(4, \\mathbb{R})$, on the algebraic set of $4$-dimensional Lie algebras admitting symplectic structures and to give a complete classification of orbit closures. We present some applications of such classification to the study of the Ricci curvature of left-invariant almost K\\\"{a}hler structures on four dimensional Lie groups.", "revisions": [ { "version": "v1", "updated": "2023-03-22T12:30:19.000Z" } ], "analyses": { "keywords": [ "symplectic lie algebras", "orbit closures", "classification", "lie algebras admitting symplectic structures", "dimensional lie algebras admitting symplectic" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable" } } }