Interpretation and properties of propagators
Proceedings of the International Conference on Nuclear and Meason Physics, 1954, Glasgow, Strathclyde, pp. 296 - 299 (ed. E.J Bellamy & R.G. Moorhouse, publ. Pergamon Press, London, 1955).
THE one-particle propagator, which DYSON denotes by SF1', is an important quantity in field theory, and a good knowledge of it, better than that obtainable from perturbation theory, would be useful. Several authors have shown that, considered as a function of the variable…