Composita and its properties

2011/03/14 by Vladimir V. Kruchinin, Kruchinin, Vladimir V., Dmitry V. Kruchinin +1 · 1 citation
Mathematics · #Combinatorics (math.CO) #FOS: Mathematics #math.CO

paper · pdf · doi:10.48550/arxiv.1103.2582

arxiv created 2013/03/25 · arxiv updated 2013/03/26

Abstract

In this paper we study the coefficients of the powers of an ordinary generating function and their properties. A new class of functions based on compositions of an integer n is introduced and is termed composita. We present theorems about compositae and operations with compositae. We obtain the compositae of polynomials, trigonometric and hyperbolic functions. Using the notion of the composita we get the solution of the functional equation B(x)=H(xB(x)^m), where H(x),B(x) are generating functions, and m∈ ℕ.

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