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ProPs of graphs and generalised traces

Abstract : We assign generalised convolutions (resp. traces) to graphs whose edges are decorated by smooth kernels (resp. smoothing operators) on a closed manifold. To do so, we introduce the concept of TraPs (Traces and Permutations), which roughly correspond to ProPs (Products and Permutations) without vertical concatenation and equipped with families of generalised partial traces. They can be equipped with a ProP structure in deriving vertical concatenation from the partial traces and we relate TraPs to wheeled ProPs first introduced by Merkulov. We further build their free object and give precise proofs of universal properties of ProPs and TraPs.
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https://hal.archives-ouvertes.fr/hal-02563704
Contributor : Loïc Foissy <>
Submitted on : Tuesday, May 5, 2020 - 3:14:26 PM
Last modification on : Thursday, May 7, 2020 - 1:40:50 AM

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  • HAL Id : hal-02563704, version 1

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Pierre Clavier, Loïc Foissy, Sylvie Paycha. ProPs of graphs and generalised traces. 2020. ⟨hal-02563704⟩

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