Results 41 to 50 of about 157,174 (281)
Geodesic-Einstein metrics and nonlinear stabilities
, 2018 In this paper, we introduce notions of nonlinear stabilities for a relative ample line bundle over a holomorphic fibration and define the notion of a geodesic-Einstein metric on this line bundle, which generalize the classical stabilities and Hermitian ...
Feng, Huitao, Liu, Kefeng, Wan, Xueyuan
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European Physical Journal C: Particles and Fields, 2021 We construct an approximate solution to the cosmological perturbation theory around Einstein–de Sitter background up to the fourth-order perturbations. This could be done with the help of the specific symmetry condition imposed on the metric, from which ...
Szymon Sikora, Krzysztof Głód
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The Einstein-Maxwell Equations and Conformally Kaehler Geometry
, 2015 Page's Einstein metric on CP_2 # (-CP_2) is conformally related to an extremal Kaehler metric. Here we construct a family of conformally K\"ahler solutions of the Einstein-Maxwell equations that deforms the Page metric, while sweeping out the entire ...
LeBrun, Claude
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Weinberg Energy-Momentum Complex for a Stringy Black Hole Solution [PDF]
, 2006 In our paper we compute the energy distribution of a magnetic stringy black hole solution in the Weinberg prescription. The metric under consideration describes the dual solution in the string frame that is known as the magnetic stringy black hole ...
Ciobanu, B., Radinschi, I.
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Kähler–Einstein metrics and eigenvalue gaps
Communications in Analysis and Geometry, 2023 The existence of Kahler-Einstein metrics on a Fano manifold is characterized in terms of a uniform gap between 0 and the first positive eigenvalue of the Cauchy-Riemann operator on smooth vector fields. It is also characterized by a similar gap between 0 and the first positive eigenvalue for Hamiltonian vector fields.
Guo, Bin, Phong, Duong H., Sturm, Jacob
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Distances of qubit density matrices on Bloch sphere
, 2011 We recall the Einstein velocity addition on the open unit ball $\B$ of $\R^{3}$ and its algebraic structure, called the Einstein gyrogroup. We establish an isomorphism between the Einstein gyrogroup on $\B$ and the set of all qubit density matrices ...
Einstein A. +3 more
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Asymptotics of ACH-Einstein Metrics [PDF]
The Journal of Geometric Analysis, 2013 We study the boundary asymptotics of ACH metrics which are formally Einstein. In terms of the partially integrable almost CR structure induced on the boundary at infinity, existence and uniqueness of such formal asymptotic expansions are studied. It is shown that there always exist formal solutions to the Einstein equation if we allow logarithmic terms,
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Clinical, histological, and serological predictors of renal function loss in lupus nephritis.
Arthritis Care &Research, Accepted Article.Objective Kidney survival is the ultimate goal in lupus nephritis (LN) management, but long‐term predictors remain inadequately studied, requiring long‐term follow‐up. This study aimed to identify baseline and early longitudinal predictors of kidney survival in the Accelerating Medicines Partnership LN longitudinal cohort.
Shangzhu Zhang +21 more
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Kropina Metrics with Isotropic Scalar Curvature via Navigation Data
MathematicsThrough an interesting physical perspective and a certain contraction of the Ricci curvature tensor in Finsler geometry, Akbar-Zadeh introduced the concept of scalar curvature for the Finsler metric.
Yongling Ma +2 more
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Five-dimensional vacuum Einstein spacetimes in C-metric like coordinates
, 2010 A 5-dimensional Einstein spacetime with (non)vanishing cosmological constant is analyzed in detail. The metric is in close analogy with the 4-dimensional massless uncharged C-metric in many aspects.
BIN ZHU +4 more
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