Results 11 to 20 of about 388,976 (296)
Integrable geodesic flows and multi-centre versus Bianchi A metrics [PDF]
Classical and Quantum Gravity, 2006 22 pages, latex2e, no ...
Valent, Galliano, Ben Yahia, Hamed
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Metric algebroid and Dirac generating operator in Double Field Theory
Journal of High Energy Physics, 2020 We give a formulation of Double Field Theory (DFT) based on a metric algebroid. We derive a covariant completion of the Bianchi identities, i.e. the pre-Bianchi identity in torsion and an improved generalized curvature, and the pre-Bianchi identity ...
Ursula Carow-Watamura +3 more
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Metric anisotropies and nonequilibrium attractor for expanding plasma
Physics Letters B, 2023 We consider the evolution of a system of chargeless and massless particles in an anisotropic space-time given by the Bianchi type I metric. Specializing to the axis-symmetric case, we derive the framework of anisotropic hydrodynamics from the Boltzmann ...
Nisarg Vyas +2 more
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Bianchi Type-I Anisotropic Universe with Metric Potential in Saez-Ballester Theory of Gravitation
Journal of Applied Mathematics and Physics, 2022 exaly +2 more sources
European Physical Journal C: Particles and Fields, 2021 We construct new classes of cosmological solution to the five dimensional Einstein–Maxwell-dilaton theory, that are non-stationary and almost conformally regular everywhere.
Bardia H. Fahim, Masoud Ghezelbash
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Vacuum polarization of scalar field on Lie groups with Bi-invariant metric [PDF]
Компьютерные исследования и моделирование, 2015 We consider vacuum polarization of a scalar field on the Lie groups with a bi-invariant metric of Robertson-Walker type. Using the method of orbits we found expression for the vacuum expectation values of the energy-momentum tensor of the scalar field ...
Alexander Igorevich Breev +1 more
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Scalar-flat Kähler metrics with conformal Bianchi V symmetry [PDF]
Classical and Quantum Gravity, 2011 Dedicated to Maciej Przanowski on the occasion of his 65th birthday. Minor corrections.
Dunajski, Maciej, Plansangkate, Prim
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Self-dual Bianchi metrics and the Painlevé transcendents
Classical and Quantum Gravity, 1994 Summary: We give two constructions that relate the self-duality condition on the Weyl curvature of a spacetime with Bianchi \(IX\) symmetry to the Painlevé equations, the first by way of the self-dual Yang-Mills equation, the second by way of the isomonodromy problem.
Maszczyk, R, Mason, L, Woodhouse, N
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DFT in supermanifold formulation and group manifold as background geometry
Journal of High Energy Physics, 2019 We develop the formulation of DFT on pre-QP-manifold. The consistency conditions like section condition and closure constraint are unified by a weak master equation. The Bianchi identities are also characterized by the pre-Bianchi identity.
Ursula Carow-Watamura +3 more
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A cosmological model with time dependent Λ, G and viscous fluid in general relativity
Frontiers in Astronomy and Space Sciences, 2022 In this paper, we investigate Bianchi type − V cosmological models with bulk viscous fluid and time varying cosmological Λ and Newtonian G parameters.
Rishi Kumar Tiwari +6 more
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