{ "id": "2102.11179", "version": "v1", "published": "2021-02-22T16:58:33.000Z", "updated": "2021-02-22T16:58:33.000Z", "title": "Inclusion-exclusion on Schubert polynomials", "authors": [ "Karola Mészáros", "Arthur Tanjaya" ], "comment": "15 pages, 5 figures", "categories": [ "math.CO" ], "abstract": "We prove that an inclusion-exclusion inspired expression of Schubert polynomials of permutations that avoid the patterns 1432 and 1423 is nonnegative. Our theorem implies a partial affirmative answer to a recent conjecture of Yibo Gao about principal specializations of Schubert polynomials. We propose a general framework for finding inclusion-exclusion inspired expression of Schubert polynomials of all permutations.", "revisions": [ { "version": "v1", "updated": "2021-02-22T16:58:33.000Z" } ], "analyses": { "subjects": [ "05E05" ], "keywords": [ "schubert polynomials", "permutations", "general framework", "principal specializations", "yibo gao" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }