Conjectured Set of Exact Bootstrap Equations
Shu‐Yuan Chu, Peter E. Kaus, F. Zachariasen · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 1970
A set of exact bootstrop equations is conjectured, consisting of two coupled homogeneous equations for the vertex function and the propagator from which any $n$-legged amplitude can be constructed. One equation is analogous to the vanishing of vertex renormalization constants ($Z=0$); the second equation expresses "duality". All graphs can be reduced to the simple tree diagram. Amplitudes, if solutions exist, will be crossing symmetric and will have at least all the necessary singularities making unitarity plausible but not proved.