“Explicit Quantitative Estimates in the Overconvergence of Chebyshev and Legendre Orthogonal Expansions on [-1, 1]”. Nonlinear Studies 17, no. 2 (May 25, 2010). Accessed March 18, 2026. https://www.nonlinearstudies.com/index.php/nonlinear/article/view/375.