OAI/Geometry/SurfaceImmersion/Primitive/PeriodicIntegralOperator.lean

GitHub source file

11 declarations, 0 contain sorry, 0 declared as axioms

Bounded linear operators underlying normalized periodic integration.

  1. lemma OAI.ClosedSurfaceR4.PeriodicIntegralOperator.continuous_lift line 20
  2. def OAI.ClosedSurfaceR4.PeriodicIntegralOperator.rawIntegral line 26

    Source documentation

    Integration from zero to a fixed real time is bounded on the space of continuous periodic functions, even when that time is outside one period.

    def rawIntegral (x : ℝ) : C(Period, E) →L[ℝ] E :=
    …
  3. lemma OAI.ClosedSurfaceR4.PeriodicIntegralOperator.rawIntegral_apply line 40
  4. lemma OAI.ClosedSurfaceR4.PeriodicIntegralOperator.rawIntegral_continuous line 43
  5. lemma OAI.ClosedSurfaceR4.PeriodicIntegralOperator.rawIntegral_norm_unit line 48
  6. def OAI.ClosedSurfaceR4.PeriodicIntegralOperator.primitiveMean line 57

    Source documentation

    The mean of the unnormalized primitive is also a bounded linear map.

    def primitiveMean : C(Period, E) →L[ℝ] E :=
    …
  7. def OAI.ClosedSurfaceR4.PeriodicIntegralOperator.normalizedIntegral line 78

    Source documentation

    The normalized primitive at a fixed time, with its linear dependence on all periodic input data made explicit.

    def normalizedIntegral (x : ℝ) : C(Period, E) →L[ℝ] E :=
    …
  8. lemma OAI.ClosedSurfaceR4.PeriodicIntegralOperator.normalizedIntegral_apply line 81
  9. lemma OAI.ClosedSurfaceR4.PeriodicIntegralOperator.normalizedIntegral_norm_unit line 84
  10. theorem OAI.ClosedSurfaceR4.PeriodicIntegralOperator.contDiff_normalizedIntegral line 102

    Source documentation

    Smooth dependence on an external parameter follows from the proved bounded linear operator, with no parameter-differentiation assumption.

    theorem contDiff_normalizedIntegral {F : P → C(Period, E)}
        (hF : ContDiff ℝ ∞ F) (x : ℝ) :
        ContDiff ℝ ∞ (fun p => normalizedIntegral x (F p)) :=
    …

    Mentions: OAI.ClosedSurfaceR4.PeriodicIntegralOperator.normalizedIntegral

  11. theorem OAI.ClosedSurfaceR4.PeriodicIntegralOperator.normalizedIntegral_fderiv line 107