Gálvez-Carrillo, Imma, Kock, Joachim and Tonks, Andrew (2014) Groupoids and Faà di Bruno formulae for Green functions in bialgebras of trees. Advances in Mathematics, 254. pp. 79-117. ISSN 1090-2082
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Official URL: https://www.sciencedirect.com/science/article/pii/...
Abstract / Description
We prove a Faa di Bruno formula for the Green function in the bialgebra of P-trees, for any polynomial endofunctor P. The formula appears as relative homotopy cardinality of an equivalence of groupoids.
Item Type: | Article |
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Uncontrolled Keywords: | Faà di Bruno formulae, Trees, Groupoids, Homotopy, cardinality, Polynomial functors, Bialgebras, Perturbative methods of renormalisation |
Subjects: | 500 Natural Sciences and Mathematics > 510 Mathematics |
Department: | School of Computing and Digital Media |
Depositing User: | Bal Virdee |
Date Deposited: | 18 Feb 2019 10:23 |
Last Modified: | 21 Apr 2020 13:20 |
URI: | https://repository.londonmet.ac.uk/id/eprint/4617 |
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