13 citations · 19 across the 2 of their papers we have counts for
18 papers
A Mission to Explore the Pioneer Anomaly
The Pioneer Explorer Collaboration, H. Dittus, S. G. Turyshev +37
The Pioneer 10 and 11 spacecraft yielded the most precise navigation in deep space to date. These spacecraft had exceptional acceleration sensitivity. However, analysis of their ra…
Axiomatics of classical electrodynamics and its relation to gauge field theory
Frank Gronwald, Friedrich W. Hehl, Jürgen Nitsch
We give a concise axiomatic introduction into the fundamental structure of classical electrodynamics: It is based on electric charge conservation, the Lorentz force, magnetic flux…
The Cauchy Relations in Linear Elasticity Theory
Friedrich W. Hehl, Yakov Itin
In linear elasticity, we decompose the elasticity tensor into two irreducible pieces with 15 and 6 independent components, respectively. The {\it vanishing} of the piece with 6 ind…
On a possible new type of a T odd skewon field linked to electromagnetism
Friedrich W. Hehl, Yuri N. Obukhov, Guillermo F. Rubilar
In the framework of generally covariant (pre-metric) electrodynamics (``charge & flux electrodynamics''), the Maxwell equations can be formulated in terms of the electromagnetic ex…
Computer algebra in gravity
Christian Heinicke, Friedrich W. Hehl
We survey the application of computer algebra in the context of gravitational theories. After some general remarks, we show of how to check the second Bianchi-identity by means of…
On the energy-momentum current of the electromagnetic field in a pre-metric axiomatic approach. I
Friedrich W. Hehl, Yuri N. Obukhov
We complete a metric-free axiomatic framework for electrodynamics by introducing the appropriate energy-momentum current Sigma of the electromagnetic field. We start from the Loren…