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Differential Equations and Dispersion Relations for Feynman Amplitudes

  • Ettore RemiddiEmail author
Chapter
Part of the Texts & Monographs in Symbolic Computation book series (TEXTSMONOGR)

Abstract

The derivation of the Cutkosky’s cutting rule by means of the Veltman’s Largest Time Equation is described in detail, and the use of cut graphs, imaginary parts and dispersive representations within the Differential Equation approach to the evaluation of Feynman graph amplitudes is discussed.

Notes

Acknowledgements

The author wants to thank Dr. Lorenzo Tancredi for several clarifying discussions. The author acknowledges also the generous support received by DESY for attending the Conference on Elliptic Integrals and Modular Forms held at Zeuthen in October 2017.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.DIFA and INFNBolognaItaly

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