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math.CA2003
Multiple Wilson and Jacobi-Pineiro polynomials
B. Beckermann, J. Coussement, W. Van Assche
We introduce multiple Wilson polynomials, which give a new example of multiple orthogonal polynomials (Hermite-Pade polynomials) of type II. These polynomials can be written as a J…
math.CA2003
Quadratic Hermite-Pade approximation to the exponential function: a Riemann-Hilbert approach
A. B. J. Kuijlaars, W. Van Assche, F. Wielonsky
We investigate the asymptotic behavior of the polynomials p, q, r of degrees n in type I Hermite-Pade approximation to the exponential function, defined by p(z)e^{-z}+q(z)+r(z)e^{z…