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Local thermodynamical equilibrium and relativistic dissipation
J Félix Salazar, Thomas Zannias
We introduce a class of relativistic fluid states satisfying the relativistic local thermodynamical equilibrium postulate (abbreviated as relativistic (LTE) postulate). States sati…
On Extended Thermodynamics: From Classical to the Relativistic Regime
Jose Felix Salazar, Thomas Zannias
The recent monumental detection of gravitational waves by LIGO, the subsequent detection by the LIGO/VIRGO observatories of a binary neutron star merger seen in the gravitational w…
On the Integrability of the Geodesic Flow on a Friedmann-Robertson-Walker Spacetime
Francisco Astorga, J. Felix Salazar, Thomas Zannias
We study the geodesic flow on the cotangent bundle of a Friedman-Robertson-Walker spacetime (M, g). On this bundle, the HamiltonJacobi equation is completely separable and this sep…
On causality violation on a Kerr-de Sitter spacetime
Thomas Zannias
The causal properties of the family of Kerr-de Sitter spacetimes are analyzed and compared to those of the Kerr family. At first we show that a Kerr-de Sitter spacetime can be view…
On the behavior of causal geodesics on a Kerr-de Sitter spacetime
José Félix Salazar, Thomas Zannias
We analyze the behavior of causal geodesics on a Kerr-de Sitter spacetime with particular emphasis on their completeness property. We set up an initial value problem (IVP) whose so…