Abstract
New methods for obtaining functional equations for Feynman integrals are presented. The application of these methods to finding functional equations for various one- and two-loop integrals is described in detail. It is shown that with the aid of the functional equations Feynman integrals in general kinematics can be expressed in terms of simpler integrals.
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Tarasov, O.V. Derivation of functional equations for Feynman integrals from algebraic relations. J. High Energ. Phys. 2017, 38 (2017). https://doi.org/10.1007/JHEP11(2017)038
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DOI: https://doi.org/10.1007/JHEP11(2017)038