Results 11 to 20 of about 157,038 (277)
Aligned electric and magnetic Weyl fields [PDF]
, 2003 We analyze the spacetimes admitting a direction for which the relative electric and magnetic Weyl fields are aligned. We give an invariant characterization of these metrics and study the properties of its Debever null vectors.
Joan Josep Ferr, Juan Antonio Sáez
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The cause of axial rotation of the scoliotic spine [PDF]
, 1991 To explain the cause of axial rotation in a scoliotic vertebral column, the influence of the gravitation force on a spine with a C-scoliosis has been investigated by means of a mechanical model. In this model the gravitation force takes hold of the three-
Cool, J.C. +3 more
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Symposium - International Astronomical Union, 1993 In approximately half the systems currently recognized as strongly gravitationally lensed, the background object is an extragalactic radio source. Radio observations have played an important role in the identification of lensed systems, and the properties of radio sources allow some of the astrophysical applications of lensing to be realized.
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Parcours, pratique théorique et documents scientifiques « privés » du physicien Jacques Solomon
Comptes Rendus. Physique, 2022 Jacques Solomon (1908-1942) is an important figure in the theoretical physics of the 1930s in France. His published works and the personal documents that have been entrusted to me, reveal specific writing processes and theoretical elaborations, which his
Bustamante De La Ossa, Martha-Cecilia
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Interplay of gravitation and linear superposition of different mass eigenstates [PDF]
, 1998 The interplay of gravitation and the quantum-mechanical principle of linear superposition induces a new set of neutrino oscillation phases. These ensure that the flavor-oscillation clocks, inherent in the phenomenon of neutrino oscillations, redshift ...
A. Halprin +27 more
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Gravitation-based personalized recommendation algorithm
工程科学学报, 2015 A recommendation algorithm is proposed by introducing the universal law of gravitation into a recommendation system. This new algorithm is named as the gravitation-based personalized recommendation (GBPR) algorithm.
WANG Guo-xia, LIU He-ping, LI Qing
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On the invisibility and impact of Robert Hooke’s theory of gravitation
Open Philosophy, 2020 Robert Hooke’s theory of gravitation is a promising case study for probing the fruitfulness of Menachem Fisch’s insistence on the centrality of trading zone mediators for rational change in the history of science and mathematics.
Guicciardini Niccolò
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Are Newtonian Gravitation and Geometrized Newtonian Gravitation Theoretically Equivalent? [PDF]
, 2014 I argue that a criterion of theoretical equivalence due to Clark Glymour [Nous 11(3), 227-251 (1977)] does not capture an important sense in which two theories may be equivalent.
Weatherall, James Owen
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General relativistic theory of gravity and electricity
Revista de Investigación de Física, 2022 As gravitation and electromagnetism are closely analogous long-range interactions, and the current formulation of gravitation is given in terms of geometry, we expect the latter also to appear throug the geometry.
Mississippi Valenzuela
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Journal of High Energy Physics, 2023 Abstract We consider four-dimensional general relativity with vanishing cosmological constant defined on a manifold with a boundary. In Lorentzian signature, the timelike boundary is of the form σ × ℝ, with σ a spatial two-manifold that we take to be either flat or S2. In Euclidean signature we take the boundary to be S2 × S1.
Dionysios Anninos +2 more
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