{ "id": "1710.00640", "version": "v1", "published": "2017-09-21T22:26:38.000Z", "updated": "2017-09-21T22:26:38.000Z", "title": "On the Global Continuity of the Roots of Families of Monic Polynomials (in Russian)", "authors": [ "Evgeny E. Bukzhalev" ], "comment": "12 pages, in Russian", "categories": [ "math.CA" ], "abstract": "We raise a question on the existence of continuous roots of families of monic polynomials (by the root of a family of polynomials we mean a function of the coefficients of polynomials of a given family that maps each tuple of coefficients to a root of the polynomial with these coefficients). We prove that the family of monic second-degree polynomials with complex coefficients and the families of monic fourth-degree and fifth-degree polynomials with real coefficients have no continuous root. We also prove that the family of monic second-degree polynomials with real coefficients has continuous roots and we describe the set of all such roots.", "revisions": [ { "version": "v1", "updated": "2017-09-21T22:26:38.000Z" } ], "analyses": { "subjects": [ "12Y99" ], "keywords": [ "monic polynomials", "global continuity", "monic second-degree polynomials", "continuous root", "real coefficients" ], "note": { "typesetting": "TeX", "pages": 12, "language": "ru", "license": "arXiv", "status": "editable" } } }