Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
cosmological equation
|
| gptkbp:appliesTo |
homogeneous and isotropic universe
|
| gptkbp:component |
gptkb:Friedmann_equations
|
| gptkbp:derivedFrom |
gptkb:Einstein_field_equations
|
| gptkbp:describes |
expansion of the universe
|
| gptkbp:form |
(ȧ/a)^2 = (8πG/3)ρ - (kc^2/a^2) + (Λc^2/3)
|
| gptkbp:formedBy |
gptkb:Alexander_Friedmann
|
| https://www.w3.org/2000/01/rdf-schema#label |
first Friedmann equation
|
| gptkbp:namedAfter |
gptkb:Alexander_Friedmann
|
| gptkbp:publishedIn |
1922
|
| gptkbp:relatedTo |
gptkb:cosmological_constant
energy density curvature scale factor |
| gptkbp:usedIn |
gptkb:cosmology
|
| gptkbp:bfsParent |
gptkb:Friedmann_equations
|
| gptkbp:bfsLayer |
5
|