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hep-th2014★ 23 cited
Differential cohomology and locally covariant quantum field theory
Christian Becker, Alexander Schenkel, Richard J. Szabo
We study differential cohomology on categories of globally hyperbolic Lorentzian manifolds. The Lorentzian metric allows us to define a natural transformation whose kernel generali…
math.DG2014
Cheeger-Chern-Simons theory and differential String classes
Christian Becker
We introduce certain relative differential characters which we call Cheeger-Chern-Simons characters. These combine the well-known Cheeger-Simons characters with Chern-Simons forms.…