79 citations · 1.2k across the 123 of their papers we have counts for
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Källen-Lehman Representation and the Gluon Propagator
Marco Frasca
We exploit the Kallen-Lehman representation of the two-point Green function to prove that the gluon propagator cannot go to zero in the infrared limit. We are able to derive also t…
Infrared Gluon and Ghost Propagators
Marco Frasca
We derive the form of the infrared gluon propagator by proving a mapping in the infrared of the quantum Yang-Mills and theories. The equivalence is complete at a classical l…
Spectrum of Yang-Mills Theory in D=3+1
Marco Frasca
We give a comparison of the spectrum of Yang-Mills theory in , recently derived with a strong coupling expansion, with lattice data. We verify excellent agreement also for 2…
Green functions and nonlinear systems: Short time expansion
Marco Frasca
We show that Green function methods can be straightforwardly applied to nonlinear equations appearing as the leading order of a short time expansion. Higher order corrections can b…
Spectrum in the broken phase of a theory
Marco Frasca
We derive the spectrum in the broken phase of a theory, in the limit , showing that this goes as even integers of a renormalized mass in agreement with recent la…
Green Function Method for Nonlinear Systems
Marco Frasca
We show that a Green function solution can be given for a class of non-homogeneous nonlinear systems having relevance in quantum field theory. This in turn means that a quantum fie…