3 citations · 3 across the 1 of their papers we have counts for
3 papers
math.CO2019★ 3 cited
Roots of Formal Power Series and New Theorems on Riordan Group Elements
Marshall M. Cohen
Elements of the Riordan group over a field of characteristic zero are infinite lower triangular matrices which are defined in terms of pairs of formal power se…
math.CO2018
Elements of Finite Order in the Riordan Group and Their Eigenvectors
Marshall M. Cohen
We consider elements of finite order in the Riordan group over a field of characteristic . Viewing as a semi-direct product of groups of formal power series, w…
math.CO2018
Elements of Finite Order in the Group of Formal Power Series Under Composition
Marshall M. Cohen
We consider formal power series , with coefficients in a field of characteristic . These form a group under the operation of composition…