Leeming, David J.Taylor, Gerald D.2010-03-312010-03-3119882010-03-31http://hdl.handle.net/1828/2414We consider characterization of the best uniform rational approximation subject to pole-free constraints.entechnical reports (mathematics and statistics)Pole-free rational approximation on supersetsTechnical ReportDepartment of MathematicsDepartment of Mathematics and Statistics