{"paper":{"title":"Alternative polarizations of Borel fixed ideals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AC","authors_text":"Kohji Yanagawa","submitted_at":"2010-11-21T13:19:56Z","abstract_excerpt":"For a monomial ideal $I$ of a polynomial ring $S$, a \"polarization\" of $I$ is a \\textit{squarefree} monomial ideal $J$ of a larger polynomial ring $S'$ such that $S/I$ is a quotient of $S'/J$ by a regular sequence (consisting of degree 1 elements). We show that a Borel fixed ideal admits a \"non-standard\" polarization. For example, while the standard polarization sends $xy^2 \\in S$ to $x_1y_1y_2 \\in S'$, ours sends it to $x_1y_2y_3$. Using this idea, we recover/refine the results on \"squarefree operation\" in the shifting theory of simplicial complexes. The present paper generalizes a result of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.4662","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}