Modified Newton identities

Article type: Research Article

Authors: Mestechkin, M.

Affiliations: 12773 Seabreeze Farms Dr. # 33, San Diego, CA 92130, USA | E-mail: mestechkinmm@gmail.com

Correspondence: [*] Corresponding author: 12773 Seabreeze Farms Dr. # 33, San Diego, CA 92130, USA. E-mail: mestechkinmm@gmail.com.

Abstract: The sums of powers with identical exponents of natural, real, or complex numbers, considered as roots of algebraic equation, are expressed directly through the products of coefficients of that equation, starting from the well-known Newton identities. The final Eq. (6) includes the same power of sum of all numbers ± a sum over all partitions of the exponent. Each term of the last sum is the equation coefficients product with the net power keeping the “dimensionality” of the exponent and having a numerical factor, equal to a proper polynomial coefficient, built of exponents of equation coefficients entering the product. The revers Eq. (43) for equation coefficients is also a sum over all partitions of the same exponent with known numerical coefficients. The entering products are built of “commutators-anticommutators of power of sum and sum of powers” (C-A) of the initial sum addends. The numerous identities Eq. (44) for a C-A with an exponent, exceeding the number of C-A sum terms by 2, and similar C-A-s with lower exponents are established.

Keywords: Finite sum of powers, polynomial coefficient, Newton’s identities

DOI: 10.3233/JCM-200031

Journal: Journal of Computational Methods in Sciences and Engineering, vol. 20, no. 3, pp. 999-1015, 2020