Renormalization of gauge theories and master equation

Abstract

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 recalled. This lecture has been delivered at the {\bf Symposium in the Honour of Professor C. N. Yang}, Stony-Brook, May 21-22 1999.

9 pages, TeX, with private macros: zmacxxx.tex, lfont.tex

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