Chebyshev series: Derivation and evaluation.
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- Record sourced from PubMed, PMID 36893085.
- Also identified by DOI 10.1371/journal.pone.0282703 and PMC identifier 9997935.
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Abstract
In this paper we use a contour integral method to derive a bilateral generating function in the form of a double series involving Chebyshev polynomials expressed in terms of the incomplete gamma function. Generating functions for the Chebyshev polynomial are also derived and summarized. Special cases are evaluated in terms of composite forms of both Chebyshev polynomials and the incomplete gamma function.