6 papers
Jet coordinates for local BRST cohomology
Friedemann Brandt
The construction of appropriate jet space coordinates for calculating local BRST cohomology groups is discussed. The relation to tensor calculus is briefly reviewed too.
An overview of new supersymmetric gauge theories with 2-form gauge potentials
Friedemann Brandt
An overview of new 4d supersymmetric gauge theories with 2-form gauge potentials constructed by various authors during the past five years is given. The key role of three particula…
Deformed supergravity with local R-symmetry
Friedemann Brandt
Using deformation theory based on BRST cohomology, a supergravity model is constructed which interpolates through a continuous deformation parameter between new minimal supergravit…
BRS Symmetry and Cohomology
Norbert Dragon
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 st…
BRST-Antibracket Cohomology in 2D Conformal Gravity
Friedemann Brandt, Walter Troost, Antoine Van Proeyen
We present results of a computation of the BRST-antibracket cohomology in the space of local functionals of the fields and antifields for a class of 2d gravitational theories which…
Structure of BRS-Invariant Local Functionals
Friedemann Brandt
For a large class of gauge theories a nilpotent BRS-operator is constructed and its cohomology in the space of local functionals of the off-shell fields is shown to be isomorph…