Results 61 to 70 of about 241,236 (258)
Almost Einstein and Poincaré–Einstein manifolds in Riemannian signature
Journal of Geometry and Physics, 2010 38 ...
Wang, Fang, Zhou, Huihuang
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ON-RECURRENT LORENTZIAN -KENMOTSU MANIFOLDS
Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009 : In this paper, we study Lorentzian -Kenmotsu manifold and we shown that -recurrent Lorentzian -Kenmotsu manifold is an Einstein manifold and a pseudo-projective -recurrent Lorentzian -Kenmotsu manifold is an - Einstein manifold.
G.T. SREENIVASA +3 more
doaj
Geometry Of Generalized Einstein Manifolds
Comptes Rendus. Mathématique, 2004 A formula linking the horizontal Laplacian Δ ¯ φ of a function φ on the fibre bundle W
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Advanced Science, EarlyView.Inorganic PbS quantum dots spatially confine AIEgens and enable cooperative luminescence within a ligand‐directed core–shell–shell nanoassembly, generating ultrabright NIR PPANPs with enhanced fluorescence and photothermal performance. The platform enables 10‐min S.
Yujian Li +15 more
wiley +1 more source
Generalized -Einstein 3-dimensional trans-Sasakian manifold
, 2020 . In the present note we have introduced a new concept called generalized -Einstein manifold in a 3-dimensional trans-Sasakian manifold and have given some preliminary ideas about the same.
Sasakian Manifold +2 more
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EINSTEIN MANIFOLDS AS YANG–MILLS INSTANTONS [PDF]
Modern Physics Letters A, 2013 It is well known that Einstein gravity can be formulated as a gauge theory of Lorentz group where spin connections play a role of gauge fields and Riemann curvature tensors correspond to their field strengths. One can then pose an interesting question: What is the Einstein equation from the gauge theory point of view? Or equivalently, what is the gauge
Oh, John J., Yang, Hyun Seok
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Advanced Electronic Materials, EarlyView.The rigid fused backbone of Y6‐series acceptors is deconstructed into a modular, non‐fused A‐π‐A′‐π‐A architecture. Comprehensive quantum chemical simulations reveal that strategic core and π‐bridge engineering preserves strong near‐infrared light‐harvesting and enhances intramolecular charge‐transfer character.
Qurat ul Ain +7 more
wiley +1 more source
Einstein, the reality of space, and the action-reaction principle [PDF]
, 2013 Einstein regarded as one of the triumphs of his 1915 theory of gravity - the general theory of relativity - that it vindicated the action-reaction principle, while Newtonian mechanics as well as his 1905 special theory of relativity supposedly violated ...
Brown, Harvey +4 more
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Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.The use of image quality metrics in combination with machine learning enables automatic image quality assessment for fluorescence microscopy images. The method can be integrated into the experimental pipeline for optical microscopy and utilized to classify artifacts in experimental images and to build quality rankings with a reference‐free approach ...
Elena Corbetta, Thomas Bocklitz
wiley +1 more source
How Hume and Mach Helped Einstein Find Special Relativity [PDF]
, 2004 In recounting his discovery of special relativity, Einstein recalled a debt to the philosophical writings of Hume and Mach. I review the path Einstein took to special relativity and urge that, at a critical juncture, he was aided decisively not by any ...
John D. Norton +2 more
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