A comparison is made between Pade and Pade -type approximants. Let Q n be the n th orthonormal polynomial with respect to a positive measure + with compact support in C. We show that for functions of the form where w is an analytic function on the support of +, Pade -type approximants with denomina
The convergence of diagonal Padé approximants and the Padé Conjecture
✍ Scribed by Herbert Stahl
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 695 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0377-0427
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✦ Synopsis
Questions related to the convergence problem of diagonal Pad6 approximants are discussed. A central place is taken by the Pad6 Conjecture (also known as the Baker-Gammel-Wills Conjecture). Partial results concerning this conjecture are reviewed and weaker and more special versions of the conjecture are formulated and their plausibility is investigated. Great emphasis is given to the role of spurious poles of the approximants. A conjecture by Nuttall (1970) about the number and distribution of such poles is stated and its importance for the Pad~ Conjecture is analyzed.
📜 SIMILAR VOLUMES
The nested multivariate Pade approximants were recently introduced. In the case of two variables x and y, they consist in applying the Pade approximation with respect to y to the coefficients of the Pade approximation with respect to x. The principal advantage of the method is that the computation o
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