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UR Birkhoff interpolation with rectangular sets of derivatives. (English) Zbl 1097.65503

Summary: We characterize the regular UR Birkhoff interpolation schemes (U stands for uniform, R for rectangular sets of nodes) with rectangular sets of derivatives, and beyond.

MSC:

65D05 Numerical interpolation
41A05 Interpolation in approximation theory
41A63 Multidimensional problems
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