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hep-th2019★ 4 cited
Diagrammatic Coaction of Two-Loop Feynman Integrals
Samuel Abreu, Ruth Britto, Claude Duhr +2
It is known that one-loop Feynman integrals possess an algebraic structure encoding some of their analytic properties called the coaction, which can be written in terms of Feynman…
hep-th2019★ 34 cited
From positive geometries to a coaction on hypergeometric functions
Samuel Abreu, Ruth Britto, Claude Duhr +2
It is well known that Feynman integrals in dimensional regularization often evaluate to functions of hypergeometric type. Inspired by a recent proposal for a coaction on one-loop F…