We construct some Cheney–Sharma-type operators defined on a triangle with two or three curved edges, their product, and Boolean sum. We study the interpolation properties of these operators and the degree of exactness.
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Published in Ukrains’kyi Matematychnyi Zhurnal, Vol. 72, No. 5, pp. 600–610, May, 2020.
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Baboş, A. Cheney–Sharma-Type Operators on a Triangle with Two or Three Curved Edges. Ukr Math J 72, 690–701 (2020). https://doi.org/10.1007/s11253-020-01809-7
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DOI: https://doi.org/10.1007/s11253-020-01809-7