{ "id": "2210.12884", "version": "v1", "published": "2022-10-23T23:27:42.000Z", "updated": "2022-10-23T23:27:42.000Z", "title": "Computing the minimum distance of the $C(\\mathbb{O}_{3,6})$ polar Orthogonal Grassmann code with elementary methods", "authors": [ "Sarah Gregory", "Fernando Piñero-González", "Doel Rivera-Laboy", "Lani Southern" ], "categories": [ "math.CO", "cs.IT", "math.AG", "math.IT" ], "abstract": "The polar orthogonal Grassmann code $C(\\mathbb{O}_{3,6})$ is the linear code associated to the Grassmann embedding of the Dual Polar space of $Q^+(5,q)$. In this manuscript we study the minimum distance of this embedding. We prove that the minimum distance of the polar orthogonal Grassmann code $C(\\mathbb{O}_{3,6})$ is $q^3-q^3$ for $q$ odd and $q^3$ for $q$ even. Our technique is based on partitioning the orthogonal space into different sets such that on each partition the code $C(\\mathbb{O}_{3,6})$ is identified with evaluations of determinants of skew--symmetric matrices. Our bounds come from elementary algebraic methods counting the zeroes of particular classes of polynomials. We expect our techniques may be applied to other polar Grassmann codes.", "revisions": [ { "version": "v1", "updated": "2022-10-23T23:27:42.000Z" } ], "analyses": { "keywords": [ "polar orthogonal grassmann code", "minimum distance", "elementary methods", "dual polar space", "polar grassmann codes" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }