1996/02/28 by Norbert Dragon, Dragon, Norbert
Physics and Astronomy · #Atomic and Subatomic Physics Research #Crystallography and Radiation Phenomena #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Topological Materials and Phenomena #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9602163
Lecture Notes Saalburg 1995, 62 pages, LaTeX
arxiv created 1996/02/28 · openalex publication_date 1996/02/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The BRS symmetry determines physical states, Lagrange densities and candidate anomalies. It renders gauge fixing unobservable in physical states and is required if negative norm states are to decouple also in interacting models. The relevant mathematical structures and the elementary cohomological investigations are presented.