Operator interpolation is one of universal methods of approximation theory

M. V. Ignatenko ; L. A. Yanovich

Trudy Instituta matematiki, Tome 28 (2020) no. 1, pp. 17-31.

Résumé

The article is mainly a survey. It outlines general approaches to constructing interpolation operator polynomials in abstract linear and functional spaces and provides a number of specific formulas for operator interpolation. Interpolation of functions of matrix variables is also considered.

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