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Deciding when and when not to reconstruct the orbit: How I do it. [PDF]
Acta Neurochir (Wien)Abdelgadir J +3 more
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Explainable machine learning integrating bioelectrical impedance for 6-month cardiovascular risk in peritoneal dialysis. [PDF]
Ren FailTsai YL, Wu CL, Chiang JH.
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Anisotropic fluids with two-perfect-fluid components
Physical Review D, 1980A two-perfect-fluid model of an anisotropic fluid is presented. The energy-momentum tensor associated with the sum of two perfect fluids, one perfect and one null fluid, and two null fluids is examined. Special attention is devoted to the study of the stress tensor. The special case wherein the two perfect fluids are irrotational is studied. A relation
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Perfect fluid scalar-tensor cosmologies
Physical Review D, 1994A method is investigated which enables exact solutions to be found for k=0 Friedmann cosmological models with a perfect fluid satisfying the equation of states p=(γ-1)ρ, where γ is constant and 0≤γ≤2, in scalar-tensor gravity theories with an arbitrary form for the gravitational coupling function ω(φ), which defines the theory.
, Barrow, , Mimoso
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Rigidly rotationg perfect fluids
Astronomische Nachrichten, 1986AbstractA class of stationary rigidly rotating perfect fluids in General Relativity is investigated. This class which is characterized by zero Simon tensor contains only the Wahlquist solution and its limits. It is shown how a recently given solution follows from the Wahlquist solution by a limiting procedure.
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Physics Letters A, 1993
Abstract It is shown that most important closed Robertson-Walker-Friedmann universe models with a perfect fluid have an analytic continuation into the Euclidean region with a wormhole-type topology.
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Abstract It is shown that most important closed Robertson-Walker-Friedmann universe models with a perfect fluid have an analytic continuation into the Euclidean region with a wormhole-type topology.
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2013
AbstractThis chapter builds the mathematical framework that is behind relativistic perfect fluids, namely those fluids for which viscous effects and heat fluxes are zero. Starting from the definition of the kinematic quantities of a perfect fluid and of the energy–momentum tensor, we explore the numerous forms assumed by the relativistic-hydrodynamics ...
Luciano Rezzolla, Olindo Zanotti
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AbstractThis chapter builds the mathematical framework that is behind relativistic perfect fluids, namely those fluids for which viscous effects and heat fluxes are zero. Starting from the definition of the kinematic quantities of a perfect fluid and of the energy–momentum tensor, we explore the numerous forms assumed by the relativistic-hydrodynamics ...
Luciano Rezzolla, Olindo Zanotti
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