Chebyshev Interpolation Using Almost Equally Spaced Points and Applications in Emission Tomography
Vangelis Marinakis,
Athanassios S. Fokas,
George A. Kastis
et al.
Abstract:Since their introduction, Chebyshev polynomials of the first kind have been extensively investigated, especially in the context of approximation and interpolation. Although standard interpolation methods usually employ equally spaced points, this is not the case in Chebyshev interpolation. Instead of equally spaced points along a line, Chebyshev interpolation involves the roots of Chebyshev polynomials, known as Chebyshev nodes, corresponding to equally spaced points along the unit semicircle. By reviewing pri… Show more
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