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Differential Equation Of Appell Polynomials Via The Factorization Method, Matthew He, Paolo E. Ricci

Mathematics Faculty Articles

Let {P_n(x)}^∞_n=0 be a sequence of polynomials of degree n. We define two sequences of differential operators Φ_n and Ψ_n satisfying the following properties:

By constructing these two operators for Appell polynomials, we determine their differential equations via the factorization method introduced by Infeld and Hull (Rev. Mod. Phys. 23 (1951) 21). The differential equations for both Bernoulli and Euler polynomials are given as special cases of the Appell polynomials.

On Quadrature Rules Associated With Appell Polynomials, Gabriella Bretti, Matthew He, Paolo E. Ricci

Mathematics Faculty Articles

A quadrature rule using Appell polynomials and generalizing both the Euler-MacLaurin quadrature formula and a similar quadrature rule, obtained in Bretti et al [15], which makes use of Euler (instead of Bernoulli) numbers and even (instead of odd) derivatives of the given function at the extrema of the considered interval, is derived. An expression of the remainder term and a numerical example are also enclosed.