Journal of Siberian Federal University. Mathematics & Physics / Difference Equations and Hadamard Composition of Multiple Power Series

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2024 17 (2)
Authors
Leinartas, Evgeny D.; Leinartas, Evgeny K.
Contact information
Leinartas, Evgeny D.: Siberian Federal University Krasnoyarsk, Russian Federation; ; Leinartas, Evgeny K.: Siberian Federal University Krasnoyarsk, Russian Federation;
Keywords
systems of polynomial linear equations with constant coefficients; multiple power series; Hadamard composition
Abstract

The sufficient conditions are given for the coefficients of two power series, which ensure the rationality of their Hadamard composition. Under certain additional constraints, the existence of a system of polynomial difference equations, satisfied by the coefficients of the composition, is proven

Pages
169–174
EDN
UHYRGO
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/152683