Explicit Representations for Local Lagrangian Numerical Differentiation

Citation
Wang, He Yu et al., Explicit Representations for Local Lagrangian Numerical Differentiation, Acta mathematica Sinica. English series (Print) , 23(2), 2006, pp. 365-372
ISSN journal
14398516
Volume
23
Issue
2
Year of publication
2006
Pages
365 - 372
Database
ACNP
SICI code
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