Approximate graph colouring and crystals

We show that approximate graph colouring is not solved by any level of the affine integer programming (AIP) hierarchy. To establish the result, we translate the problem of exhibiting a graph fooling a level of the AIP hierarchy into the problem of constructing a highly symmetric crystal tensor. In o...

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Bibliographic Details
Main Authors: Ciardo, L, Živný, S
Format: Conference item
Language:English
Published: Society for Industrial and Applied Mathematics 2023

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