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O. Schnetz (2008)
Quantum periods: A census of \phi^4-transcendentalsarXiv: High Energy Physics - Theory
F. Brown, D. Kreimer (2011)
Angles, Scales and Parametric RenormalizationLetters in Mathematical Physics, 103
D. Broadhurst, D. Kreimer (1995)
Knots and Numbers in ϕ4 Theory to 7 Loops and BeyondInternational Journal of Modern Physics C, 6
[Feynman graph periodPeriod calculations are quite difficult, as would be expected for something capturing a substantial chunk of the interesting mathematics of the Feynman integrals themselves. So, one thing any physicist would do to try to simplify the calculations would be to look for useful symmetriesSymmetry.]
Published: Nov 26, 2016
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