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Approximation By Bernstein Polynomials At The Point Of Discontinuity, Jie Ling Liang
Approximation By Bernstein Polynomials At The Point Of Discontinuity, Jie Ling Liang
HIM 1990-2015
Chlodovsky showed that if x0 is a point of discontinuity of the first kind of the function f, then the Bernstein polynomials Bn(f, x0) converge to the average of the one-sided limits on the right and on the left of the function f at the point x0. In 2009, Telyakovskii in (5) extended the asymptotic formulas for the deviations of the Bernstein polynomials from the differentiable functions at the first-kind discontinuity points of the highest derivatives of even order and demonstrated the same result fails for the odd order case. Then in 2010, Tonkov in (6) found the right formulation …