obtained from the Riemann tensor by subtracting a tensor that is a linear expression in the Ricci tensor. In general relativity, the Weyl curvature is the only...
10 KB (1,742 words) - 18:26, 17 March 2025
the Weyl tensor and Ricci tensor do not in general determine the full curvature tensor, the Riemann curvature tensor can be decomposed into a Weyl part...
12 KB (2,115 words) - 00:45, 22 May 2025
Petrov classification (category Tensors in general relativity)
classification) describes the possible algebraic symmetries of the Weyl tensor at each event in a Lorentzian manifold. It is most often applied in studying...
17 KB (2,699 words) - 02:03, 25 May 2024
Spinor (redirect from Majorana-Weyl spinor)
distinguished from the tensor representations given by Weyl's construction by the weights. Whereas the weights of the tensor representations are integer...
72 KB (9,926 words) - 10:53, 10 August 2025
vanishing of the Weyl tensor, while the Cotton tensor just becomes a constant times the divergence of the Weyl tensor. For n < 3 the Cotton tensor is identically...
6 KB (1,013 words) - 14:16, 30 July 2025
the Weyl algebra and universal enveloping algebras. The tensor algebra has two different coalgebra structures. One is compatible with the tensor product...
23 KB (4,161 words) - 17:18, 1 February 2025
see Weyl transformation Weyl tensor Weyl transform Weyl transformation Weyl–Schouten theorem Weyl's criterion Weyl's lemma on hypoellipticity Weyl's lemma...
39 KB (4,386 words) - 08:03, 30 June 2025
The Weyl tensor has the same basic symmetries as the Riemann tensor, but its 'analogue' of the Ricci tensor is zero: W i j k l = −...
20 KB (5,403 words) - 08:53, 6 March 2025
mathematics, the modern component-free approach to the theory of a tensor views a tensor as an abstract object, expressing some definite type of multilinear...
11 KB (1,719 words) - 12:38, 26 May 2025
energy–momentum tensor and the Petrov classification of the Weyl tensor. There are various methods of classifying these tensors, some of which use tensor invariants...
42 KB (7,044 words) - 06:10, 20 January 2025
theoretical physics, the Weyl transformation, named after German mathematician Hermann Weyl, is a local rescaling of the metric tensor: g a b → e − 2 ω ( x...
3 KB (687 words) - 10:50, 27 March 2025
The Lanczos tensor or Lanczos potential is a rank 3 tensor in general relativity that generates the Weyl tensor. It was first introduced by Cornelius...
12 KB (1,924 words) - 19:16, 18 February 2024
two vectors is sometimes called an elementary tensor or a decomposable tensor. The elementary tensors span V ⊗ W {\displaystyle V\otimes W} in the sense...
50 KB (8,688 words) - 10:34, 28 July 2025
mathematical field of differential geometry, the Riemann curvature tensor or Riemann–Christoffel tensor (after Bernhard Riemann and Elwin Bruno Christoffel) is the...
19 KB (2,934 words) - 18:43, 20 December 2024
differential geometry, the torsion tensor is a tensor that is associated to any affine connection. The torsion tensor is a bilinear map of two input vectors...
27 KB (4,375 words) - 18:41, 24 July 2025
Ricci calculus (redirect from Tensor calculus)
notation and manipulation for tensors and tensor fields on a differentiable manifold, with or without a metric tensor or connection. It is also the modern...
46 KB (7,275 words) - 11:43, 2 June 2025
Penrose graphical notation (redirect from Tensor diagram notation)
essentially the composition of functions. In the language of tensor algebra, a particular tensor is associated with a particular shape with many lines projecting...
9 KB (678 words) - 09:08, 10 August 2025
Curvature invariant (general relativity) (category Curvature tensors)
the Weyl tensor.) As one might expect from the Ricci decomposition of the Riemann tensor into the Weyl tensor plus a sum of fourth-rank tensors constructed...
6 KB (961 words) - 10:41, 13 July 2025
Moment of inertia (redirect from Moment of inertia tensor)
inertia tensor of a body calculated at its center of mass, and R {\displaystyle \mathbf {R} } be the displacement vector of the body. The inertia tensor of...
91 KB (17,180 words) - 22:37, 18 July 2025
stress-energy tensor The stress–energy tensor, sometimes called the stress–energy–momentum tensor or the energy–momentum tensor, is a tensor field quantity...
24 KB (3,881 words) - 21:57, 5 August 2025
differential geometry, the Einstein tensor (named after Albert Einstein; also known as the trace-reversed Ricci tensor) is used to express the curvature...
10 KB (1,682 words) - 23:36, 30 July 2025
In tensor analysis, a mixed tensor is a tensor which is neither strictly covariant nor strictly contravariant; at least one of the indices of a mixed...
4 KB (645 words) - 03:23, 31 March 2023
dimension of the manifold. The Weyl tensor equals the Riemann curvature tensor minus the Kulkarni–Nomizu product of the Schouten tensor with the metric. In an...
2 KB (412 words) - 17:18, 13 July 2025
Ricci curvature (redirect from Ricci curvature tensor)
relationship between the Ricci tensor and the matter content of the universe. Like the metric tensor, the Ricci tensor assigns to each tangent space of...
34 KB (5,807 words) - 18:25, 6 August 2025
Pseudotensor (redirect from Pseudo-tensor)
spacetime Tensor – Algebraic object with geometric applications Tensor density – Generalization of tensor fields Tensor field – Assignment of a tensor continuously...
6 KB (1,037 words) - 22:30, 12 June 2025
Hodge star operator (redirect from Dual tensor)
space L ( V , V ) {\displaystyle L(V,V)} is naturally isomorphic to the tensor product V ∗ ⊗ V ≅ V ⊗ V {\displaystyle V^{*}\!\!\otimes V\cong V\otimes...
40 KB (6,499 words) - 13:14, 17 July 2025
manifold M {\displaystyle M} and the metric tensor is given as a covariant, second-degree, symmetric tensor on M {\displaystyle M} , conventionally denoted...
15 KB (2,490 words) - 23:17, 5 July 2025
Kronecker delta (redirect from Kronecker tensor)
thought of as a tensor, and is written δ j i {\displaystyle \delta _{j}^{i}} . Sometimes the Kronecker delta is called the substitution tensor. In the study...
19 KB (3,667 words) - 20:47, 10 August 2025
metric field on M consists of a metric tensor at each point p of M that varies smoothly with p. A metric tensor g is positive-definite if g(v, v) > 0 for...
56 KB (8,863 words) - 21:58, 19 May 2025
electromagnetism, the electromagnetic tensor or electromagnetic field tensor (sometimes called the field strength tensor, Faraday tensor or Maxwell bivector) is a...
18 KB (3,463 words) - 00:28, 25 June 2025