A new quadrature formula associated with the ultraspherical polynomials
Journal of Approximation Theory
On Birkhoff quadrature formulas II
Journal of Approximation Theory
Lacunary quadrature formulae and interpolation singularity
Journal of Approximation Theory
Journal of Computational and Applied Mathematics
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The main object of this paper is to construct a Birkhoff quadrature formula of the form @!^1"-"1f(x)dx~@?i-1nA"i"f"^"'(xi)+@?j=0kCj(f^j(1)+(-1)^jf^(^j^)(-1), which is exact for the polynomials of degree =