113 citations · 729 across the 33 of their papers we have counts for
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math-ph1998★ 11 cited
Gauge invariance of the Chern-Simons action in noncommutative geometry
T. Krajewski
In complete analogy with the classical case, we define the Chern-Simons action functional in noncommutative geometry and study its properties under gauge transformations. As usual,…
hep-th1998★ 14 cited
On Kreimer's Hopf algebra structure of Feynman graphs
Thomas Krajewski, Raimar Wulkenhaar
We reinvestigate Kreimer's Hopf algebra structure of perturbative quantum field theories with a special emphasis on overlapping divergences. Kreimer first disentangles overlapping…
hep-th1998★ 5 cited
Constraints on the scalar potential from spectral action principle
T. Krajewski
Using noncommutative geometry, the standard tools of differential geometry can be extended to a broad class of spaces whose coordinates are noncommuting operators acting on a Hilbe…