Abstract:
Upper bounds for the norms of Hermite–Fejér interpolation operators in one-dimensional and multidimensional periodic Sobolev spaces are obtained. It is shown that, in the one-dimensional case, the norm of this operator is bounded. In the multidimensional case, the upper bound depends on the ratio of the numbers of nodes on separate coordinates.
Citation:
A. I. Fedotov, “Estimate of the Norm of the Hermite–Fejér Interpolation Operator in Sobolev Spaces”, Mat. Zametki, 105:6 (2019), 911–925; Math. Notes, 105:6 (2019), 905–916