- Centre National de la Recherche ScientifiqueFR872 papers
- Max Planck Institute for Radio AstronomyDE623 papers
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- Center for Astrophysics Harvard & SmithsonianUS242 papers
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7 papers · 2 filters
The Einstein 3-form G_a and its equivalent 1-form L_a in Riemann-Cartan space
Christian Heinicke
The definition of the Einstein 3-form G_a is motivated by means of the contracted 2nd Bianchi identity. This definition involves at first the complete curvature 2-form. The 1-form…
Spin-driven inflation
Yuri N. Obukhov
Following recent studies of Ford, we suggest -- in the framework of general relativity -- an inflationary cosmological model with the self-interacting spinning matter. A generaliza…
On a model of an unconstrained hyperfluid
Yuri N. Obukhov
A hyperfluid is a classical continuous medium carrying hypermomentum. We modify the earlier developed variational approach to a hyperfluid in such a way that the Frenkel type const…
Hyperfluid - a model of classical matter with hypermomentum
Yuri N. Obukhov, Romualdo Tresguerres
A variational theory of a continuous medium is developed the elements of which carry momentum and hypermomentum (hyperfluid). It is shown that the structure of the sources in metri…
Plane-fronted waves in metric-affine gravity
Alberto Garcia, Alfredo Macias, Dirk Puetzfeld +1
We study plane-fronted electrovacuum waves in metric-affine gravity theories (MAG) with cosmological constant. Their field strengths are, on the gravitational side, curvature $R_α{…
Wave propagation in linear electrodynamics
Yuri N. Obukhov, Tetsuo Fukui, Guillermo Rubilar
The Fresnel equation governing the propagation of electromagnetic waves for the most general linear constitutive law is derived. The wave normals are found to lie, in general, on a…