Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Exact solutions in general relativity and Friedmann–Lemaître–Robertson–Walker metric

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between Exact solutions in general relativity and Friedmann–Lemaître–Robertson–Walker metric

Exact solutions in general relativity vs. Friedmann–Lemaître–Robertson–Walker metric

In general relativity, an exact solution is a Lorentzian manifold equipped with tensor fields modeling states of ordinary matter, such as a fluid, or classical nongravitational fields such as the electromagnetic field. The Friedmann–Lemaître–Robertson–Walker (FLRW) metric is an exact solution of Einstein's field equations of general relativity; it describes a homogeneous, isotropic, expanding or contracting universe that is path connected, but not necessarily simply connected.

Similarities between Exact solutions in general relativity and Friedmann–Lemaître–Robertson–Walker metric

Exact solutions in general relativity and Friedmann–Lemaître–Robertson–Walker metric have 9 things in common (in Unionpedia): Cosmological constant, Dark energy, Einstein field equations, General relativity, Gravitational constant, Quintessence (physics), Ricci curvature, Spacetime topology, Stress–energy tensor.

Cosmological constant

In cosmology, the cosmological constant (usually denoted by the Greek capital letter lambda: Λ) is the value of the energy density of the vacuum of space.

Cosmological constant and Exact solutions in general relativity · Cosmological constant and Friedmann–Lemaître–Robertson–Walker metric · See more »

Dark energy

In physical cosmology and astronomy, dark energy is an unknown form of energy which is hypothesized to permeate all of space, tending to accelerate the expansion of the universe.

Dark energy and Exact solutions in general relativity · Dark energy and Friedmann–Lemaître–Robertson–Walker metric · See more »

Einstein field equations

The Einstein field equations (EFE; also known as Einstein's equations) comprise the set of 10 equations in Albert Einstein's general theory of relativity that describe the fundamental interaction of gravitation as a result of spacetime being curved by mass and energy.

Einstein field equations and Exact solutions in general relativity · Einstein field equations and Friedmann–Lemaître–Robertson–Walker metric · See more »

General relativity

General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics.

Exact solutions in general relativity and General relativity · Friedmann–Lemaître–Robertson–Walker metric and General relativity · See more »

Gravitational constant

The gravitational constant (also known as the "universal gravitational constant", the "Newtonian constant of gravitation", or the "Cavendish gravitational constant"), denoted by the letter, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's general theory of relativity.

Exact solutions in general relativity and Gravitational constant · Friedmann–Lemaître–Robertson–Walker metric and Gravitational constant · See more »

Quintessence (physics)

In physics, quintessence is a hypothetical form of dark energy, more precisely a scalar field, postulated as an explanation of the observation of an accelerating rate of expansion of the universe.

Exact solutions in general relativity and Quintessence (physics) · Friedmann–Lemaître–Robertson–Walker metric and Quintessence (physics) · See more »

Ricci curvature

In differential geometry, the Ricci curvature tensor, named after Gregorio Ricci-Curbastro, represents the amount by which the volume of a small wedge of a geodesic ball in a curved Riemannian manifold deviates from that of the standard ball in Euclidean space.

Exact solutions in general relativity and Ricci curvature · Friedmann–Lemaître–Robertson–Walker metric and Ricci curvature · See more »

Spacetime topology

Spacetime topology is the topological structure of spacetime, a topic studied primarily in general relativity.

Exact solutions in general relativity and Spacetime topology · Friedmann–Lemaître–Robertson–Walker metric and Spacetime topology · See more »

Stress–energy tensor

The stress–energy tensor (sometimes stress–energy–momentum tensor or energy–momentum tensor) is a tensor quantity in physics that describes the density and flux of energy and momentum in spacetime, generalizing the stress tensor of Newtonian physics.

Exact solutions in general relativity and Stress–energy tensor · Friedmann–Lemaître–Robertson–Walker metric and Stress–energy tensor · See more »

The list above answers the following questions

Exact solutions in general relativity and Friedmann–Lemaître–Robertson–Walker metric Comparison

Exact solutions in general relativity has 89 relations, while Friedmann–Lemaître–Robertson–Walker metric has 67. As they have in common 9, the Jaccard index is 5.77% = 9 / (89 + 67).

References

This article shows the relationship between Exact solutions in general relativity and Friedmann–Lemaître–Robertson–Walker metric. To access each article from which the information was extracted, please visit:

Hey! We are on Facebook now! »