Hepp’s bound for Feynman graphs and matroids
We study a rational matroid invariant, obtained as the tropicalization of the Feynman period integral. It equals the volume of the polar of the matroid polytope and we give efficient formulas for its computation. This invariant is proven to respect all known identities of Feynman integrals for graph...
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| Aineistotyyppi: | Journal article |
| Kieli: | English |
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European Mathematical Society
2022
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