• In semi-Riemannian geometry, the Bel decomposition, taken with respect to a specific timelike congruence, is a way of breaking up the Riemann tensor of...
    3 KB (484 words) - 19:22, 28 January 2023
  • K_{3}=-I_{1}+2\,R_{ab}\,R^{ab}-{\tfrac {2}{3}}\,R^{2}} In four dimensions, the Bel decomposition of the Riemann tensor, with respect to a timelike unit vector field...
    7 KB (1,090 words) - 05:51, 27 December 2023
  • Newtonian gravity. To study the tidal forces in more detail, the Bel decomposition of the Riemann tensor can be computed into three pieces, the tidal...
    25 KB (3,872 words) - 16:04, 30 April 2025
  • mathematical fields of Riemannian and pseudo-Riemannian geometry, the Ricci decomposition is a way of breaking up the Riemann curvature tensor of a Riemannian...
    10 KB (2,269 words) - 12:15, 29 December 2023
  • equation quantifies the second part. In particular, according to the Bel decomposition of the Riemann tensor, taken with respect to our timelike unit vector...
    15 KB (2,770 words) - 21:28, 5 January 2025
  • space of two forms (at each event). From this we can read off the Bel decomposition with respect to the timelike unit vector field X → = e → 0 = 1 a (...
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  • background (the transverse sectional curvature). In contrast, the Bel decomposition of the Riemann curvature tensor, taken with respect to X → = e → 0...
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  • Thumbnail for Timeline of gravitational physics and relativity
    relies on the Mössbauer effect. 1959 – Lluís Bel introduces Bel–Robinson tensor and the Bel decomposition of the Riemann tensor. 1959 – Arthur Komar introduces...
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  • Beijing Electron–Positron Collider II Bejan number Bekenstein bound Bel decomposition Belinski–Zakharov transform Bell's spaceship paradox Bell's theorem...
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  • Thumbnail for Pascal Comelade
    Claret's voice). Bel Canto Orquestra Milano Enharmonisto Précis de Décomposition Bruitiste Scénes de Musique Ralentie Détail Monochrome 1986 : Bel Canto 1987 :...
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  • the Human Visual Model quantizer generation process is calibrated in visiBels (vB), a logarithmic scale roughly corresponding to perceptibility as measured...
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  • strong stream of urine. Urkel — Just as it will be giving The Fresh Prince of Bel-Air a dramatic reboot, Peacock promotes "the next 90s show about the Black...
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    Takaya; S. Moriuti; R. Noyori (1968). "Homogeneous catalysis in the decomposition of diazo compounds by copper chelates: Asymmetric carbenoid reactions"...
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  • } is defined by a function: bel : 2 X → [ 0 , 1 ] {\displaystyle \operatorname {bel} :2^{X}\rightarrow [0,1]\,\!} with bel ⁡ ( H ) = ∑ ∅ ≠ A ⊆ H m ( A...
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  • Thumbnail for Death of Alexander the Great
    by Chaldeans, who advised him not to enter the city because their deity Bel had warned them that to do so at that time would be fatal for Alexander....
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  • level of participation coupled with the requisite intent." Justice Louis LeBel, writing for the minority, found that the jury was not properly informed...
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    on December 8, 2021. Retrieved November 1, 2021. Office of Governor John Bel Edwards (April 23, 2018). "Formosa Selects St. James Parish for $9.4 Billion...
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  • Thumbnail for 2020 Beirut explosion
    explosion was caused by nitrogen dioxide, a byproduct of ammonium nitrate decomposition. By the next morning, the main fire that led to the explosion had been...
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  • Thumbnail for History of the nude in art
    resembling insects, with a lacerated and tattered appearance, as if in decomposition, giving equal importance to emptiness and matter (Shepherd on the Landes...
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  • interpunct. In practice, the separate code point for ano teleia canonically decomposes to the interpunct. The Hellenistic scholars of Alexandria first developed...
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  • Thumbnail for Rebecca (novel)
    Bramwell Fletcher; Robert Montgomery Presents (22 May 1950), with Barbara Bel Geddes and Peter Cookson; and Broadway Television Theatre (1 September 1952)...
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  • Thumbnail for Optical rotation
    the one type. In 1874, Jacobus Henricus van 't Hoff and Joseph Achille Le Bel independently proposed that this phenomenon of optical activity in carbon...
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  • Thumbnail for Cope reaction
    Amine Oxides. VII. The Thermal Decomposition of the N-Oxides of N-Methylazacycloalkanes Arthur C. Cope, Norman A. LeBel; J. Am. Chem. Soc.; 1960; 82(17);...
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  • Thumbnail for August Wilhelm von Hofmann
    "synthesis", in their paper "On Styrole, and Some of the Products of Its Decomposition," predating Kolbe's use of the term by some months. What Blyth and Hofmann...
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  • Thumbnail for Nitrosation and nitrosylation
    ring, but the ring must be substantially activated, because NO+ is about 14 bel less electrophilic than NO+ 2. Unusually for electrophilic aromatic substitution...
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  • oversized cardboard box, but after it started deteriorating due to decomposition, he bought a steel barrel and stuffed them inside. He then claimed that...
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    empty but at least 25 people have been found in advanced states of decomposition, probably dead from starvation or exposure. At least some of the crude...
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  • Thumbnail for Hexamethylbenzene
    (6): 1514. doi:10.1021/ja01515a061. Le Bel, Joseph Achille; Greene, William H. (1880). "On the decomposition of alcohols, etc., by zinc chloride at high...
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  • probabilistic bounds on the performance are quite common. The bias–variance decomposition is one way to quantify generalisation error. For the best performance...
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  • Thumbnail for Speleology
    it can happen physically, and in silicate rocks and warm climate the decomposition of the materials can happen as well. A speleothem is a geological formation...
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