{ "id": "1703.08163", "version": "v1", "published": "2017-03-23T17:50:02.000Z", "updated": "2017-03-23T17:50:02.000Z", "title": "On the asymptotic variance of the number of real roots of random polynomial systems", "authors": [ "Diego Armentano", "Jean-Marc Azaïs", "Federico Dalmao", "José R. León" ], "comment": "13 pages", "categories": [ "math.PR" ], "abstract": "We obtain the asymptotic variance, as the degree goes to infinity, of the normalized number of real roots of a square Kostlan-Shub-Smale random polynomial system of any size. Our main tools are the Kac-Rice formula for the second factorial moment of the number of roots and a Hermite expansion of this random variable.", "revisions": [ { "version": "v1", "updated": "2017-03-23T17:50:02.000Z" } ], "analyses": { "subjects": [ "60F05", "30C15", "60G60", "65H10" ], "keywords": [ "asymptotic variance", "real roots", "square kostlan-shub-smale random polynomial system", "second factorial moment", "main tools" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }