A theorem of Korovkin states that a sequence of positive linear operators on C[ a, b] converges strongly to the identity if and only if convergence holds on a three-dimensional Chebyshev subspace of C ...
On a conjecture for weighted interpolation using Chebyshev polynomials of the third and fourth kinds
This is a preview. Log in through your library . Abstract A conjecture for the projection norm (or Lebesgue constant) of a weighted interpolation method based on the zeros of Chebyshev polynomials of ...
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