{ "id": "1104.5360", "version": "v1", "published": "2011-04-28T11:37:25.000Z", "updated": "2011-04-28T11:37:25.000Z", "title": "On the Distribution of Complex Roots of Random Polynomials with Heavy-tailed Coefficients", "authors": [ "Friedrich Götze", "Dmitry Zaporozhets" ], "comment": "8 pages", "categories": [ "math.PR", "math.CV" ], "abstract": "Consider a random polynomial $G_n(z)=\\xi_nz^n+...+\\xi_1z+\\xi_0$ with i.i.d. complex-valued coefficients. Suppose that the distribution of $\\log(1+\\log(1+|\\xi_0|))$ has a slowly varying tail. Then the distribution of the complex roots of $G_n$ concentrates in probability, as $n\\to\\infty$, to two centered circles and is uniform in the argument as $n\\to\\infty$. The radii of the circles are $|\\xi_0/\\xi_\\tau|^{1/\\tau}$ and $|\\xi_\\tau/\\xi_n|^{1/(n-\\tau)}$, where $\\xi_\\tau$ denotes the coefficient with the maximum modulus.", "revisions": [ { "version": "v1", "updated": "2011-04-28T11:37:25.000Z" } ], "analyses": { "subjects": [ "30C15" ], "keywords": [ "random polynomial", "complex roots", "heavy-tailed coefficients", "distribution", "maximum modulus" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1104.5360G" } } }