{ "id": "math/0212278", "version": "v2", "published": "2002-12-19T20:26:42.000Z", "updated": "2002-12-23T18:25:04.000Z", "title": "Determination of the structure of algebraic curvature tensors by means of Young symmetrizers", "authors": [ "B. Fiedler" ], "comment": "19 pages. To appear Seminaire Lotharingien de Combinatoire: http://www.mat.univie.ac.at/~slc/", "journal": "Seminaire Lotharingien de Combinatoire, 48 (2003) Article B48d", "categories": [ "math.CO", "cs.SC", "math.DG" ], "abstract": "For a positive definite fundamental tensor all known examples of Osserman algebraic curvature tensors have a typical structure. They can be produced from a metric tensor and a finite set of skew-symmetric matrices which fulfil Clifford commutation relations. We show by means of Young symmetrizers and a theorem of S. A. Fulling, R. C. King, B. G. Wybourne and C. J. Cummins that every algebraic curvature tensor has a structure which is very similar to that of the above Osserman curvature tensors. We verify our results by means of the Littlewood-Richardson rule and plethysms. For certain symbolic calculations we used the Mathematica packages MathTensor, Ricci and PERMS.", "revisions": [ { "version": "v2", "updated": "2002-12-23T18:25:04.000Z" } ], "analyses": { "subjects": [ "53B20", "15A72", "05E10", "16D60", "05-04" ], "keywords": [ "young symmetrizers", "determination", "fulfil clifford commutation relations", "osserman algebraic curvature tensors", "osserman curvature tensors" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2002math.....12278F" } } }