Approximation theory
Daghestan Electronic Mathematical Reports, Issue 9 (2018)
Convex interpolation by rational spline functions of class $ C ^ 2 $
UDK: 517.5
Pages: 62 - 67
DOI: 10.31029/demr.9.7
Sufficient conditions are established for the convexity
of interpolation rational spline-functions of the class $C^2$.
Keywords: convex interpolation, interpolation splines, rational spline-functions.