29 citations · 126 across the 12 of their papers we have counts for
14 papers · 1 filter
The Rough with the Smooth of the Light Cone String
Norbert Dragon, Florian Oppermann
The polynomials in the generators of a unitary representation of the Poincaré group constitute an algebra which maps the dense subspace S of smooth, rapidly decreasing wavefunction…
Heisenberg versus the Covariant String
Norbert Dragon, Florian Oppermann
A Poincaré multiplet of mass eigenstates cannot be a subspace of a space with a -vector position operator : the Heisenberg alg…
The cosmological constant as a boundary term
Wilfried Buchmuller, Norbert Dragon
We compare the path integral for transition functions in unimodular gravity and in general relativity. In unimodular gravity the cosmological constant is a property of states that…
Heisenberg Algebra and String Theory
Norbert Dragon, Florian Oppermann
If the algebra of the Poincaré generators is enlarged by the spacetime position operator then the spectra of the momentum and the mass are unboun…
Currents for Arbitrary Helicity
Norbert Dragon
Using Mackey's classification of unitary representations of the Poincaré group on massles states of arbitrary helicity we disprove the claim that states with helicity |h|>=1 cannot…
BRST Symmetry and Cohomology
Norbert Dragon, Friedemann Brandt
We present the mathematical considerations which determine all gauge invariant actions and anomaly candidates in gauge theories of standard type such as ordinary or gravitational Y…