@Article{NMTMA-7-3, author = {}, title = {Simultaneous Approximation of Sobolev Classes by Piecewise Cubic Hermite Interpolation}, journal = {Numerical Mathematics: Theory, Methods and Applications}, year = {2014}, volume = {7}, number = {3}, pages = {317--333}, abstract = {
For the approximation in $L_p$-norm, we determine the weakly asymptotic orders for the simultaneous approximation errors of Sobolev classes by piecewise cubic Hermite interpolation with equidistant knots. For $p = 1$, $∞$, we obtain its values. By these results we know that for the Sobolev classes, the approximation errors by piecewise cubic Hermite interpolation are weakly equivalent to the corresponding infinite-dimensional Kolmogorov widths. At the same time, the approximation errors of derivatives are weakly equivalent to the corresponding infinite-dimensional Kolmogorov widths.
}, issn = {2079-7338}, doi = {https://doi.org/10.4208/nmtma.2014.1232nm}, url = {https://global-sci.com/article/90605/simultaneous-approximation-of-sobolev-classes-by-piecewise-cubic-hermite-interpolation} }