{ "id": "2210.16903", "version": "v1", "published": "2022-10-30T17:58:25.000Z", "updated": "2022-10-30T17:58:25.000Z", "title": "On Gelfand and MacPherson's combinatorial formula for Pontrjagin classes", "authors": [ "Olakunle Abawonse", "Laura Anderson" ], "comment": "35 pages, 9 figures", "categories": [ "math.AT", "math.CO", "math.DG" ], "abstract": "In 1992 Gelfand and MacPherson gave a local and combinatorial formula for the Pontrjagin classes of a differential manifold. We give an expanded version of their discussion and highlight the origins of combinatorial differential manifolds in their work.", "revisions": [ { "version": "v1", "updated": "2022-10-30T17:58:25.000Z" } ], "analyses": { "subjects": [ "05B35", "52C40", "55R40", "57R20" ], "keywords": [ "macphersons combinatorial formula", "pontrjagin classes", "combinatorial differential manifolds", "macpherson gave", "expanded version" ], "note": { "typesetting": "TeX", "pages": 35, "language": "en", "license": "arXiv", "status": "editable" } } }