2 citations · 3 across the 3 of their papers we have counts for
9 papers · 1 filter
On deformation theory of quantum vertex algebras
Harald Grosse, Karl-Georg Schlesinger
We study an algebraic deformation problem which captures the data of the general deformation problem for a quantum vertex algebra. We derive a system of coupled equations which is…
The universal envelope of the topological closed string BRST-complex
Harald Grosse, Karl-Georg Schlesinger
We construct a universal envelope for any Poisson- and Gerstenhaber algebra. While the deformation theory of Poisson algebras seems to be partially trivial, results from string- an…
The energy-momentum tensor on noncommutative spaces - some pedagogical comments
A. Gerhold, J. Grimstrup, H. Grosse +3
We present the discussion of the energy-momentum tensor of the scalar - theory on a noncommutative space. The Noether procedure is performed at the operator level. Additionall…
Renormalization of noncommutative Yang-Mills theories: A simple example
Harald Grosse, Thomas Krajewski, Raimar Wulkenhaar
We prove by explicit calculation that Feynman graphs in noncommutative Yang-Mills theory made of repeated insertions into itself of arbitrarily many one-loop ghost propagator corre…
Towards a Nonperturbative Covariant Regularization in 4D Quantum Field Theory
H. Grosse, A. Strohmaier
We give a noncommutative version of the complex projective space CP^2 and show that scalar QFT on this space is free of UV divergencies. The tools necessary to investigate Quantum…
A treatment of the Schwinger Model within Noncommutative Geometry
H. Grosse, P. Presnajder
A free spinor field on a noncommutative sphere is described starting from a canonical realization of the enveloping algebra U(u(2|1)). The gauge extension of the model - the Schwin…