{ "id": "math/0305142", "version": "v2", "published": "2003-05-09T16:56:44.000Z", "updated": "2003-08-03T10:22:58.000Z", "title": "Chow rings of toric varieties defined by atomic lattices", "authors": [ "Eva Maria Feichtner", "Sergey Yuzvinsky" ], "comment": "23 pages, 7 figures, final revision with minor changes, to appear in Invent. Math", "journal": "Invent. Math. 155 (2004) 515-536.", "doi": "10.1007/s00222-003-0327-2", "categories": [ "math.AG", "math.CO" ], "abstract": "We study a graded algebra D=D(L,G) defined by a finite lattice L and a subset G in L, a so-called building set. This algebra is a generalization of the cohomology algebras of hyperplane arrangement compactifications found in work of De Concini and Procesi. Our main result is a representation of D, for an arbitrary atomic lattice L, as the Chow ring of a smooth toric variety that we construct from L and G. We describe this variety both by its fan and geometrically by a series of blowups and orbit removal. Also we find a Groebner basis of the relation ideal of D and a monomial basis of D over Z.", "revisions": [ { "version": "v2", "updated": "2003-08-03T10:22:58.000Z" } ], "analyses": { "keywords": [ "toric varieties", "chow ring", "smooth toric variety", "hyperplane arrangement compactifications", "arbitrary atomic lattice" ], "tags": [ "journal article" ], "publication": { "journal": "Inventiones Mathematicae", "year": 2004, "month": "Mar", "volume": 155, "number": 3, "pages": 515 }, "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004InMat.155..515F" } } }