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Journals and Conferences
We describe the functions needed in the determination of the rate of convergence of best $$L^\infty $$ rational approximation to $$\exp ( - x)$$ on [0,∞) when the degree n of the approximation tends to ∞ (“1/9” problem).
We analyse the entropy of Hermite polynomials and orthogonal polynomials for the Freud weights w(x) = exp(−|x|) on R and show how these entropies are related to information entropy of the one-dimensional harmonic oscillator. The physical interest in such entropies comes from a stronger version of the Heisenberg uncertainty principle, due to… (More)