{ "id": "2006.06211", "version": "v1", "published": "2020-06-11T05:59:54.000Z", "updated": "2020-06-11T05:59:54.000Z", "title": "The Hilbert scheme of a pair of linear spaces is a Mori dream space", "authors": [ "Ritvik Ramkumar" ], "comment": "22 pages", "categories": [ "math.AG" ], "abstract": "Let $H_{a,b}^n$ denote the component of the Hilbert scheme whose general point parameterizes an $a$-plane union a $b$-plane meeting transversely in $\\mathbf{P}^n$. We describe the effective and nef cones of $H_{a,b}^n$ and determine when the component is Fano. Moreover, we show that $H_{a,b}^n$ is a Mori dream space for all values of $a,b,n$.", "revisions": [ { "version": "v1", "updated": "2020-06-11T05:59:54.000Z" } ], "analyses": { "subjects": [ "14D22", "14E05", "14E30", "14M15" ], "keywords": [ "mori dream space", "hilbert scheme", "linear spaces", "general point parameterizes", "plane union" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable" } } }