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def

no_background_modification

definition
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module
IndisputableMonolith.Relativity.Cosmology.Buchert
domain
Relativity
line
43 · github
papers citing
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IndisputableMonolith.Relativity.Cosmology.Buchert on GitHub at line 43.

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formal source

  40
  41/-- The "No Background Modification" result: because Q_D = 0, the background
  42    expansion (H) remains that of the chosen matter content. -/
  43def no_background_modification (H f δ : ℝ) : Prop :=
  44  localBackreaction (-H * f * δ) ((1/3 : ℝ) * (H * f * δ)^2) = 0
  45
  46theorem background_is_stable (H f δ : ℝ) : no_background_modification H f δ :=
  47  buchert_cancellation H f δ
  48
  49end Cosmology
  50end Relativity
  51end IndisputableMonolith

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