Chebyshev Polynomials is a sequence of orthogonal polynomials defined on the interval $[-1, 1]$ that are distinguished by their minimal maximum deviation from zero among all polynomials with leading coefficient normalized to one, arising as solutions to the Chebyshev differential equation and characterized by their trigonometric definition $ T_n(x) = \cos(n \arccos x) $.
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Alexander Weiße, Gerhard Wellein, Andreas Alvermann et al. · Reviews of Modern Physics · 2006 · 1.1K citations · Full text
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