Journal
LETTERS IN MATHEMATICAL PHYSICS
Volume 107, Issue 6, Pages 1177-1192Publisher
SPRINGER
DOI: 10.1007/s11005-016-0935-6
Keywords
Perturbation theory; Graphical functions; Feynman integrals; Parametric representation
Categories
Ask authors/readers for more resources
Graphical functions are positive functions on the punctured complex plane which arise in quantum field theory. We generalize a parametric integral representation for graphical functions due to Lam, Lebrun and Nakanishi, which implies the real analyticity of graphical functions. Moreover, we prove a formula that relates graphical functions of planar dual graphs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
