{ "id": "1710.05214", "version": "v1", "published": "2017-10-14T17:24:02.000Z", "updated": "2017-10-14T17:24:02.000Z", "title": "A closed non-iterative formula for straightening fillings of Young diagrams", "authors": [ "Reuven Hodges" ], "comment": "19 Pages", "categories": [ "math.CO", "math.RT" ], "abstract": "Young diagrams are fundamental combinatorial objects in representation theory and algebraic geometry. Many constructions that rely on these objects depend on variations of a straightening process, due to Alfred Young, that expresses a filling of a Young diagram as a sum of semistandard tableau subject to certain relations. It has been a long-standing open problem to give a non-iterative, closed formula for this straightening process. This paper gives such a formula, as well as a simple combinatorial description of the coefficients that arise. Moreover, an interpretation of these coefficients in terms of paths in a directed graph is provided.", "revisions": [ { "version": "v1", "updated": "2017-10-14T17:24:02.000Z" } ], "analyses": { "subjects": [ "05A19", "05E10", "20C30", "20C33" ], "keywords": [ "young diagram", "closed non-iterative formula", "straightening fillings", "semistandard tableau subject", "simple combinatorial description" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }