OAI/Geometry/RCD/Harmonic/MeanGramInverse.lean

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5 declarations, 0 contain sorry, 0 declared as axioms

The actual inverse of an exactly normalized mean Gram

  1. theorem OAI.RegularPointCoordinates.meanGram_injective_of_exact_normalization line 22

    Source documentation

    Exact normalization makes the original mean Gram injective.

    theorem meanGram_injective_of_exact_normalization :
        Function.Injective (sobolevMeanGram μ hQ U Ω hΩ) := by
    …

    Mentions: OAI.RegularPointCoordinates.sobolevMeanGram

  2. def OAI.RegularPointCoordinates.meanGramEquiv line 33

    Source documentation

    The mean Gram itself, with the inverse supplied by its proved nondegeneracy. This is independent of which exact normalizer witnesses it.

    def meanGramEquiv [FiniteDimensional ℝ E] : E ≃L[ℝ] E :=
    …
  3. theorem OAI.RegularPointCoordinates.meanGramEquiv_apply line 37
  4. theorem OAI.RegularPointCoordinates.meanGram_apply_normalizer_adjoint line 42

    Source documentation

    The inverse Gram direction is exactly A A* xi, without a symmetry assumption on the chosen normalizer.

    theorem meanGram_apply_normalizer_adjoint (xi : E) :
        sobolevMeanGram μ hQ U Ω hΩ (A (A.toContinuousLinearMap.adjoint xi)) = xi := by
    …

    Mentions: OAI.RegularPointCoordinates.sobolevMeanGram

  5. theorem OAI.RegularPointCoordinates.meanGramEquiv_symm_apply line 53