403 citations · 1.8k across the 30 of their papers we have counts for
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The parity theorem for multiple polylogarithms
Erik Panzer
We generalize the well-known parity theorem for multiple zeta values (MZV) to functional equations of multiple polylogarithms (MPL). This reproves the parity theorem for MZV with a…
On the Computation of Form Factors in Massless QCD with Finite Master Integrals
Andreas von Manteuffel, Erik Panzer, Robert M. Schabinger
We present the bare one-, two-, and three-loop form factors in massless Quantum Chromodynamics as linear combinations of finite master integrals. Using symbolic integration, we com…
Graphical functions in parametric space
Marcel Golz, Erik Panzer, Oliver Schnetz
Graphical functions are positive functions on the punctured complex plane which arise in quantum field theory. We generalize a parametric integral repr…
Feynman integrals and hyperlogarithms
Erik Panzer
We study Feynman integrals in the representation with Schwinger parameters and derive recursive integral formulas for massless 3- and 4-point functions. Properties of analytic (inc…