{ "id": "1808.00512", "version": "v1", "published": "2018-08-01T19:05:46.000Z", "updated": "2018-08-01T19:05:46.000Z", "title": "Time-dependent polynomials with one multiple root and new solvable dynamical systems", "authors": [ "Oksana Bihun" ], "categories": [ "math-ph", "math.CA", "math.DS", "math.MP" ], "abstract": "A time-dependent monic polynomial in the z variable with N distinct roots such that exactly one root has multiplicity m>=2 is considered. For k=1,2, the k-th derivatives of the N roots are expressed in terms of the derivatives of order j<= k of the first N coefficients of the polynomial and of the derivatives of order j<= k-1 of the roots themselves. These relations are utilized to construct new classes of algebraically solvable first order systems of ODEs as well as N-body problems. Multiple examples of solvable isochronous (all solutions are periodic with the same period) 2- and 3-body problems are provided.", "revisions": [ { "version": "v1", "updated": "2018-08-01T19:05:46.000Z" } ], "analyses": { "subjects": [ "70F10", "70K42" ], "keywords": [ "solvable dynamical systems", "time-dependent polynomials", "multiple root", "algebraically solvable first order systems", "time-dependent monic polynomial" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }