Abstract
The W-functions of QED fully determine the theory, as has been explained in Chap. 4. QED is therefore known if its W-functions have been found. This is the problem that we now intend to attack using the Gupta-Bleuler formalism. To this end we need to enumerate the conditions which the W-functions must satisfy. There are three sets of conditions: (a) the equations of motion, i.e. partial differential equations which the W must satisfy, (b) the W-properties explained in Chap. 4, and (c) the renormalization conditions indicated in Chap. 6.
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© 2000 Springer-Verlag Berlin Heidelberg
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Steinmann, O. (2000). The Program of Perturbation Theory. In: Perturbative Quantum Electrodynamics and Axiomatic Field Theory. Texts and Monographs in Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04297-7_8
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DOI: https://doi.org/10.1007/978-3-662-04297-7_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-08635-9
Online ISBN: 978-3-662-04297-7
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