Rational Hermite-Pad\'e Approximants vs Pad\'e Approximants. Numerical Results
Abstract
The main purpose of the paper is to present some powerful data on the advantage of the rational approximation procedure based on Hermite-Pad\'e polynomials over the Pad\'e approximation procedure. The first part of the paper is devoted to some numerical examples in this direction. The second part will be devoted to some theoretical results. In particular, we demonstrate our ideas about the advantage of rational Hermite-Pad\'e approximants over Pad\'e approximants analyzing the analytical structure of the frequency function of the free Van der Pol equation.
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