{ "id": "math/0310180", "version": "v1", "published": "2003-10-13T12:08:09.000Z", "updated": "2003-10-13T12:08:09.000Z", "title": "Classification of four-dimensional Lie algebras admitting a para-hypercomplex structure", "authors": [ "N. Blazic", "S. Vukmirovic" ], "comment": "15 pages", "categories": [ "math.DG" ], "abstract": "The main goal is to classify 4-dimensional real Lie algebras $\\g$ which admit a para-hypercomplex structure. This is a step toward the classification of Lie groups admitting the corresponding left-invariant structure and therefore possessing a neutral, left-invariant, anti-self-dual metric. Our study is related to the work of Barberis who classified real, 4-dimensional simply-connected Lie groups which admit an invariant hypercomplex structure.", "revisions": [ { "version": "v1", "updated": "2003-10-13T12:08:09.000Z" } ], "analyses": { "subjects": [ "53C50", "53C56", "32M10", "53C26", "53C55" ], "keywords": [ "four-dimensional lie algebras admitting", "para-hypercomplex structure", "classification", "lie groups", "invariant hypercomplex structure" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2003math.....10180B" } } }