BRST Extension of the Non-Linear Unfolded Formalism

Abstract

We review the construction of gauge field theories from BRST first-quantized systems and its relation to the unfolded formalism. In particular, the BRST extension of the non linear unfolded formalism is discussed in some details.

arXiv comment15 pages. Extended version of the talks given at the conference ``Rencontres Mathematiques de Glanon'', July 2004, Glanon, France and the school ``Quantum Field Theory, Supersymmetry and Higher Spin Fields'', March 2005, Tomsk, Russia. Misprints corrected, references added

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