Results 231 to 240 of about 61,767 (263)

Conserved quantities at spatial and null infinity: The Penrose potential

Physical Review D, 1990
We define a superpotential for energy-momentum and rotation momentum which is built out of the conformal tensor and a bivector. This superpotential is identified with that used by Penrose in his definition of quasilocal energy. It is applied to the definition of energy-momentum and rotation momentum at spatial and at null infinities.
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Mathematical system of potential infinities (IV) – set theoretic foundation

Kybernetes, 2008
PurposeThis paper is the fourth part of the effort to resolve the following two problems that urgently need an answer: how can an appropriate theoretical foundation be chosen for modern mathematics and computer science? And, under what interpretations can modern mathematics and the theory of computer science be kept as completely as possible?Design ...
Wujia Zhu, Yi Lin, Guoping Du, Ningsheng Gong   +3 more
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Scattering Matrix for Magnetic Potentials with Coulomb Decay at Infinity

Integral Equations and Operator Theory, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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ELEMENTARY INFINITY—THE THIRD TYPE OF INFINITY BESIDES POTENTIAL INFINITY AND ACTUAL INFINITY

Computational Intelligence, 2010
WUJIA ZHU, NINGSHENG GONG, GUOPING DU
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Motility, Potentiality, and Infinity—A Semiotic Hypothesis on Nature and Religion

Biosemiotics, 2011
Against any obscurantist stand, denying the interest of natural sciences for the comprehension of human meaning and language, but also against any reductionist hypothesis, frustrating the specificity of the semiotic point of view on nature, the paper argues that the deepest dynamic at the basis of meaning consists in its being a mechanism of ...
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Well-Posedness for Nonlinear Wave Equation with Potentials Vanishing at Infinity

Journal of Fourier Analysis and Applications, 2017
In this paper, the author proves a global well-posedness result in some scale-invariant weighted Besov spaces and Strichartz spaces for the nonlinear wave equation of the form \((\partial_t^2 -\Delta+a(t,x)\cdot\nabla)u =\bar\lambda |W u|^\alpha\), with data in \(\dot H^{1/2}\times \dot H^{-1/2}\) for \((t,x)\in \mathbb{R}^{1+n}\). Here, \(n\ge 3\), \(\
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Potential at Infinity on Symmetric Spaces and Martin Boundary

1992
For simply connected Riemannian manifolds with negatively pinched curvature, the Martin compactification has recently been identified with the compactification by the sphere at infinity [A-S], [Anc]. Such a general result does not hold in general when the curvature is allowed to vanish, and even for the most computable case of riemannian symmetric ...
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Synthetic state of charge estimation for lithium-ion batteries based on long short-term memory network modeling and adaptive H-Infinity filter

Energy, 2021
Zheng Chen, Xing Shu, Yuanjian Zhang
exaly  

THE RELATION OF OPPOSITION BETWEEN POTENTIAL INFINITY AND ACTUAL INFINITY

Computational Intelligence, 2010
WUJIA ZHU, GUOPING DU, NINGSHENG GONG
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State-of-charge estimation of lithium-ion batteries based on improved H infinity filter algorithm and its novel equalization method

Journal of Cleaner Production, 2021
Jianxiong Zhou, Fei Zhou
exaly