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Piecewise Linear Interpolation With Nonequidistant Nodes |
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| Authors: | Gancho T Tachev |
| Institution: | Dept. of Mathematics , University of Architecture, Civil Engineering and Geodesy , Sofia , BG , 1421 , Bulgaria E-mail: gtt_fte@uacg.acad.bg |
| Abstract: | Pointwise and norm estimates for approximation of continuous function by piecewise linear interpolant with nonequidistant nodes are proved. Special attention is paid to the value of the absolute constants in front of the modulus. |
| Keywords: | 41A10 41A15 41A36 Ditzian-Totik moduli of smoothness positive linear operators piecewise linear interpolation |