On the Signature of a Path in an Operator Algebra

We introduce a class of operators associated with the signature of a smooth path 𝑋 with values in a 𝐶⋆ algebra 𝒜. These operators serve as the basis of Taylor expansions of solutions to controlled differential equations of interest in noncommutative probability. They are defined by fully contracting...

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Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2022
Main Authors: Gilliers, Nicolas, Bellingeri, Carlo
Format: Article
Language:English
Published: Інститут математики НАН України 2022
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/211808
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:On the Signature of a Path in an Operator Algebra. Nicolas Gilliers and Carlo Bellingeri. SIGMA 18 (2022), 096, 43 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine