Abstract
It is shown that in Lagrangian numerical differentiation formulas, the coefficients are explicitly expressed by means of cycle indicator polynomials of symmetric group. Moreover, asymptotic expansions of the remainders are also explicitly represented as a fixed number of interpolation nodes approaching infinitely to the point at which the derivative is evaluated. This implies that complete explicit formulas for local Lagrangian numerical differentiation can be obtained.
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This work is supported in part by the National Natural Science Foundation of China (Grant No. 10471128)
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Wang, H.Y., Cui, F. & Wang, X.H. Explicit Representations for Local Lagrangian Numerical Differentiation. Acta Math Sinica 23, 365–372 (2007). https://doi.org/10.1007/s10114-005-0902-0
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DOI: https://doi.org/10.1007/s10114-005-0902-0