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For describing the non-negative gravitational energy-momentum in terms of a pure Bel-Robinson `momentum' in a quasi-local small sphere limit, the Bel-Robinson tensor $B$ is desirable. However, we found this Bel-Robinson `momentum' can be…

General Relativity and Quantum Cosmology · Physics 2018-12-31 Lau Loi So

The Bel-Robinson tensor $B_{\alpha\beta\mu\nu}$ gives a positive definite gravitational energy in the quasilocal small sphere limit approximation. However, there is an alternative tensor $V_{\alpha\beta\mu\nu}$ that was proposed recently…

General Relativity and Quantum Cosmology · Physics 2010-06-29 Lau Loi So

Two essential properties of energy-momentum tensors T_{\mu\nu} are their positivity and conservation. This is mathematically formalized by, respectively, an energy condition, as the dominant energy condition, and the vanishing of their…

General Relativity and Quantum Cosmology · Physics 2009-11-07 Jose M. Pozo , Josep M. Parra

The Bel-Robinson tensor $B_{\alpha\beta\mu\nu}$ gives a positive definite gravitational energy in the small sphere limit approximation. However, there is an alternative tensor $V_{\alpha\beta\mu\nu}$ which was proposed recently that offers…

General Relativity and Quantum Cosmology · Physics 2009-02-02 Lau Loi So

The Bel-Robinson tensor $T_{\alpha\beta\mu\nu}$ was proposed in 1958. The main application of this tensor is for describing gravitational energy. It is known that $T_{\alpha\beta\mu\nu}$ has many nice properties such as being completely…

General Relativity and Quantum Cosmology · Physics 2010-07-23 Lau Loi So

For describing the non-negative gravitational energy-momentum in terms of a pure Bel-Robinson type energy-momentum in a quasi-local 2-surface, both the Bel-Robinson tensor $B$ and tensor $V$ are suitable. We have found that this…

General Relativity and Quantum Cosmology · Physics 2014-06-02 Lau Loi So

In this paper, we give a further study on $B$-tensors and introduce doubly $B$-tensors that contain $B$-tensors. We show that they have similar properties, including their decompositions and strong relationship with strictly (doubly)…

Spectral Theory · Mathematics 2016-04-29 Lu Ye , Zhongming Chen

For describing the non-negative gravitational energy-momentum in terms of a pure Bel-Robinson type energy-momentum in a quasilocal 2-surface, both the Bel-Robinson tensor $B$ and tensor $V$ are suitable. We found that this Bel-Robinson type…

General Relativity and Quantum Cosmology · Physics 2013-12-17 Lau Loi So

The Bel-Robinson tensor $B$ and the tensor $V$ have the same quasilocal energy-momentum in a small sphere. Using a pseudotensor approach to evaluate the energy-momentum in a half-cylinder, we find that $B$ and $V$ have different values, not…

General Relativity and Quantum Cosmology · Physics 2022-01-06 Lau Loi So

A purely algebraic construction of super-energy tensors for arbitrary fields is presented in any dimensions. These tensors have good mathematical and physical properties, and they can be used in any theory having as basic arena an…

General Relativity and Quantum Cosmology · Physics 2009-10-31 J. M. M. Senovilla

Describing the gravitational energy and momentum, the Bel-Robinson tensor is the best tensor. However, the classical pseudotensors can also manage the the same job. As Deser mentioned in 1999, a certain linear combination between Einstein…

General Relativity and Quantum Cosmology · Physics 2022-12-29 Lau Loi So

We show that the Bel-Robinson (BR) tensor is - generically, as well as in its original GR setting - an autonomously conserved part of the, manifestly conserved, double gradient of a system's stress-tensor. This suggests its natural…

General Relativity and Quantum Cosmology · Physics 2015-03-13 S. Deser , J. Franklin

In this paper we present our point of view on correct physical interpretation of the Bel-Robinson tensor within the framework of the standard General Relativity ({\bf GR}), i.e., within the framework of the {\bf GR} without supplementary…

General Relativity and Quantum Cosmology · Physics 2017-09-27 Janusz Garecki

We present some generalizations, and novel properties, of the Bel-Robinson tensor, in the context of constructing local invariants in D=11 supergravity.

General Relativity and Quantum Cosmology · Physics 2009-11-19 S. Deser

In this work we present a geometric identity involving the Bel-Robinson tensor which is formally similar to the Sparling identity (which involves the Einstein tensor through the Einstein 3-form). In our identity the Bel-Robinson tensor…

General Relativity and Quantum Cosmology · Physics 2015-06-16 Alfonso García-Parrado Gómez-Lobo

In this article, we introduce the class $B$-Nekrasov tensor in the context of tensor complementarity problem. We study some tensor theoretic properties. We show that the class of B-Nekrasov tensor contains the class of Nekrasov $Z$-tensor…

Optimization and Control · Mathematics 2022-09-30 R. Deb , A. K. Das

It is known that some results for spinors, and in particular for superenergy spinors, are much less transparent and require a lot more effort to establish, when considered from the tensor viewpoint. In this paper we demonstrate how the use…

General Relativity and Quantum Cosmology · Physics 2015-06-25 S. Brian Edgar , Ola Wingbrant

The gravitational energy-momentum within a small region as determined by two tetrad-teleparallel expressions is evaluated with the aid of an orthonormal frame adapted to Riemann normal coordinates. We find that the gauge current "tensor"…

General Relativity and Quantum Cosmology · Physics 2012-07-31 Lau Loi So , James M. Nester

We have studied the famous classical pseudotensors in the small region limit, both inside matter and in vacuum. A recent work [Deser et al.1999 CQG 16, 2815] had found one combination of the Einstein and Landau-Lifshitz expressions which…

General Relativity and Quantum Cosmology · Physics 2012-07-31 Lau Loi So , James M. Nester , Hsin Chen

The asymptotic form of the Bel-Robinson tensor in the gravitational radiation-zone is obtained in terms of the mass quadrupole of the source. A comparison is made with the standard formula for the gravitational power emission. The problem…

General Relativity and Quantum Cosmology · Physics 2017-03-17 S. Hacyan
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