
doi: 10.1007/bf02836339
The author introduces quasi-interpolants on \([0,1]\) that can be viewed as intermediate operators between the classical Bernstein operator and the Lagrange interpolation operator. These operators only use function values and derivative values of the Bernstein polynomial of a given function. Some properties of these quasi-interpolants are studied, in particular a Voronovskaya type theorem to establish their higher order of convergence.
Bernstein operator, Lagrange interpolation operator, Approximation by positive operators, quasi-interpolants, Interpolation in approximation theory
Bernstein operator, Lagrange interpolation operator, Approximation by positive operators, quasi-interpolants, Interpolation in approximation theory
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