It can be shown that any massless spin-2 field would give rise to a force indistinguishable from gravitation, because a massless spin-2 field must couple to (interact with) the stress–energy tensor in the same way that the gravitational field does; therefore if a massless spin-2 particle were ever discovered, it would be likely to be the graviton without further distinction from other massless spin-2 particles.
Да.Никогаш не сум го видела толку лутWikiMatrix WikiMatrix
The inertia matrix is often described as the inertia tensor, which consists of the same moments of inertia and products of inertia about the three coordinate axes.
Извини.Заборавив дека си свештеник. ИзвиниWikiMatrix WikiMatrix
However, the equations can be arranged so that they contain only the metric tensor and not its inverse.
Следниот пат мојот партнер ќе биде најубав од сите, онаа која ја гледав како цвета како нежен цвет, и за која сонував да ја наберамWikiMatrix WikiMatrix
Similar to the way that electromagnetic fields are determined using charges and currents via Maxwell's equations, the EFE are used to determine the spacetime geometry resulting from the presence of mass–energy and linear momentum, that is, they determine the metric tensor of spacetime for a given arrangement of stress–energy in the spacetime.
A possible problem is that these RWEs can deal with complicated mathematical objects with exotic algebraic properties (e.g. spinors are not tensors, so may need calculus over spinor fields), but these in theory can still be subjected to analytical methods given appropriate mathematical generalization.
Мора барем да си слушнала за девојкаваWikiMatrix WikiMatrix
In the mathematical field of differential geometry, a metric tensor is a type of function which takes as input a pair of tangent vectors v and w at a point of a surface (or higher dimensional differentiable manifold) and produces a real number scalar g(v, w) in a way that generalizes many of the familiar properties of the dot product of vectors in Euclidean space.
In constructing such equations, we often find that equations previously thought to be unrelated are, in fact, closely connected being part of the same tensor equation.
The metric tensor that defines the geometry—in particular, how lengths and angles are measured—is not the Minkowski metric of special relativity, it is a generalization known as a semi- or pseudo-Riemannian metric.
Еј заљубен, подобро ти е да престанешWikiMatrix WikiMatrix
In 1956, Felix Pirani remedied the confusion caused by the use of various coordinate systems by rephrasing the gravitational waves in terms of the manifestly observable Riemann curvature tensor.
Сартр во едно интервју рекол дека не почувствувал ни еден очаен ден во својот животWikiMatrix WikiMatrix
Symmetries usually require some form of preserving property, the most important of which in general relativity include the following: preserving geodesics of the spacetime preserving the metric tensor preserving the curvature tensor These and other symmetries will be discussed below in more detail.
О, да.Поради тоа што го кажав, јасно ми е зашто го мислишWikiMatrix WikiMatrix
In contemporary terms, the metric tensor allows one to compute the dot product of tangent vectors in a manner independent of the parametric description of the surface.
Испратен сум на барање на преседателкатаWikiMatrix WikiMatrix
Inside other materials which possess more complex responses to electromagnetic fields, these terms are often represented by complex numbers, or tensors.
The surface interaction force, in turn, is equal to the dot product of the unit normal with the Cauchy stress tensor describing the stress state of the surface.