{ "id": "0710.5751", "version": "v1", "published": "2007-10-30T20:29:44.000Z", "updated": "2007-10-30T20:29:44.000Z", "title": "A Vanishing Result for Toric Varieties Associated with Root Systems", "authors": [ "Qëndrim R. Gashi" ], "categories": [ "math.RT", "math.AG" ], "abstract": "Consider a root system $R$ and the corresponding toric variety $V_R$ whose fan is the Weyl fan and whose lattice of characters is given by the root lattice for $R$. We prove the vanishing of the higher cohomology groups for certain line bundles on $V_R$ by proving a purely combinatorial result for root systems. These results are related to a converse to Mazur's Inequality for (simply-connected) split reductive groups.", "revisions": [ { "version": "v1", "updated": "2007-10-30T20:29:44.000Z" } ], "analyses": { "keywords": [ "root system", "toric varieties", "vanishing result", "higher cohomology groups", "corresponding toric variety" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0710.5751G" } } }