Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
metric tensor
solution to Einstein field equations |
| gptkbp:alsoKnownAs |
gptkb:Friedmann–Lemaître–Robertson–Walker_metric
|
| gptkbp:assumes |
gptkb:cosmology
|
| gptkbp:category |
gptkb:general_relativity
gptkb:theoretical_physics |
| gptkbp:dependsOn |
curvature parameter
scale factor |
| gptkbp:describes |
homogeneous and isotropic universe
|
| gptkbp:dimensions |
4-dimensional spacetime
|
| gptkbp:expressedIn |
comoving coordinates
|
| gptkbp:firstDescribed |
1920s
|
| gptkbp:form |
ds² = -c²dt² + a(t)² [dr²/(1-kr²) + r²(dθ² + sin²θ dφ²)]
|
| https://www.w3.org/2000/01/rdf-schema#label |
Robertson–Walker metric
|
| gptkbp:namedAfter |
gptkb:Arthur_Geoffrey_Walker
gptkb:Howard_Percy_Robertson |
| gptkbp:relatedTo |
gptkb:Friedmann_equations
|
| gptkbp:usedFor |
modeling expanding universe
|
| gptkbp:usedIn |
gptkb:cosmology
gptkb:Lambda-CDM_model gptkb:Big_Bang_model |
| gptkbp:bfsParent |
gptkb:General_Theory_of_Relativity
|
| gptkbp:bfsLayer |
4
|