{ "id": "1401.8050", "version": "v2", "published": "2014-01-31T02:57:05.000Z", "updated": "2015-01-29T20:02:17.000Z", "title": "Birational Geometry of the Space of Complete Quadrics", "authors": [ "César Lozano Huerta" ], "comment": "20 pages, 1 figure. To appear in International Mathematics Research Notices", "categories": [ "math.AG" ], "abstract": "We study the birational geometry of the moduli space of complete $n$-quadrics $X$. We exhibit generators for Eff$(X)$ and Nef$(X)$, the cone of effective divisors and the cone of nef divisors, respectively. As a corollary X is a Mori Dream space. Furthermore, we run the MMP on $X$ and find a moduli interpretation for the models induced by the generators of the nef cone. In the case of complete quadric surfaces, we describe all the birational models of $X$ induced by the movable cone and find a moduli interpretation for some of these models.", "revisions": [ { "version": "v1", "updated": "2014-01-31T02:57:05.000Z", "title": "Birational Geometry of Complete Quadrics", "abstract": "We study the birational geometry of the moduli space of complete $n$-quadrics $X$. We exhibit generators for Eff$(X)$ and Nef$(X)$, the cone of effective divisors and the cone of nef divisors, respectively. As a corollary X is a Mori Dream space. Furthermore, we run the MMP on $X$ and find a moduli interpretation for the models induced by the generators of the nef cone. For complete quadric surfaces, we describe all the birational models of $X$ induced by the movable cone and find a moduli interpretation for some of such models.", "comment": "20 pages, 1 figure", "journal": null, "doi": null }, { "version": "v2", "updated": "2015-01-29T20:02:17.000Z" } ], "analyses": { "keywords": [ "birational geometry", "moduli interpretation", "complete quadric surfaces", "mori dream space", "nef divisors" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1401.8050L" } } }