Statements (32)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:logic
|
| gptkbp:appliesTo |
dark energy
cosmic acceleration early universe inflation |
| gptkbp:describes |
modification of general relativity
|
| gptkbp:explains |
cosmic acceleration without dark energy
|
| gptkbp:field |
gptkb:cosmology
gptkb:theoretical_physics gravitational physics |
| gptkbp:generalizes |
gptkb:f(R,_G)_gravity
gptkb:scalar-tensor_theories higher-order gravity theories |
| gptkbp:hasApplication |
gravitational waves
structure formation black hole solutions solar system tests |
| gptkbp:hasEquation |
field equations derived from varying action with respect to metric
|
| https://www.w3.org/2000/01/rdf-schema#label |
f(R) gravity
|
| gptkbp:introduced |
gptkb:A._A._Starobinsky
|
| gptkbp:introducedIn |
1980
|
| gptkbp:limitation |
general relativity when f(R)=R
|
| gptkbp:mathematicalObject |
function of Ricci scalar
|
| gptkbp:numberOfIssues |
constraints from observations
instabilities in some models |
| gptkbp:proposedBy |
gravitational Lagrangian as a function of Ricci scalar R
|
| gptkbp:relatedTo |
gptkb:Einstein-Hilbert_action
gptkb:general_relativity modified gravity |
| gptkbp:studiedBy |
theoretical physicists
cosmologists |
| gptkbp:bfsParent |
gptkb:Modified_Gravity_(MOG)
|
| gptkbp:bfsLayer |
5
|