Shifted Substitution in Non-Commutative Multivariate Power Series with a View Toward Free Probability

We study a particular group law on formal power series in non-commuting variables induced by their interpretation as linear forms on a suitable graded connected word Hopf algebra. This group law is left-linear and is therefore associated with a pre-Lie structure on formal power series. We study thes...

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Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2023
Main Authors: Ebrahimi-Fard, Kurusch, Patras, Frédéric, Tapia, Nikolas, Zambotti, Lorenzo
Format: Article
Language:English
Published: Інститут математики НАН України 2023
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/211905
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Shifted Substitution in Non-Commutative Multivariate Power Series with a View Toward Free Probability. Kurusch Ebrahimi-Fard, Frédéric Patras, Nikolas Tapia and Lorenzo Zambotti. SIGMA 19 (2023), 038, 17 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine