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2017

2017

We consider the entanglement entropy for a spacetime region and its spacelike complement in the framework of algebraic quantum… Expand

Highly Cited

2013

Highly Cited

2013

Pre-Lie (or Vinberg) algebras arise from flat and torsion-free connections on differential manifolds. These algebras have been… Expand

2012

2012

We construct Dirac operators on foliations by applying the Bismut-Lebeau analytic localization technique to the Connes fibration… Expand

2011

2011

We study Feynman rules for the rational part R of the Standard Model amplitudes at one-loop level in the ’t Hooft-Veltman γ5… Expand

2008

2008

We construct an associative algebra with a decomposition into the direct sum of the underlying vector spaces of another… Expand

2006

2006

A stability and efficiency improved class of generalized Runge–Kutta methods of order 4 are developed for the numerical solution… Expand

2006

2006

In a first part we study the phi^{p+1}--field theory from the classical point of view. Using Butcher series we compute explicitly… Expand

Highly Cited

2005

Highly Cited

2005

This paper proves a theorem (“Theorem 6”) on the composition of, what we call, Butcher series. This Theorem is shown to be… Expand

2003

2003

The algebraic structure underlying non-commutative Lie-Butcher series is the free Lie algebra over ordered trees. In this paper… Expand

1997

1997

Abstract Using the formalism of superconnections, we show the existence of a bosonic action functional for the standard K-cycle… Expand