DAPNIA-03-160 |
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Renormalization of gauge theories and master equation |
J. Zinn-Justin |
The evolution of ideas which has led from the first proofs of the renormalizability of non-abelian gauge theories, based on Slavnov--Taylor identities, to the modern proof based on the BRS symmetry and the master equation is briefly recalled. The content and consequences of the master equation are explained. |