OAI/Analysis/Mahler/SphereFlux.lean

GitHub source file

11 declarations, 0 contain sorry, 0 declared as axioms

  1. def OAI.Mahler.sphereFrameSlots line 15

    Source documentation

    Reassociate the two leading real slots to preserve the interleaved order.

    def sphereFrameSlots (k : ℕ) :
        Fin 1 ⊕ (Fin 1 ⊕ WedgePowerSlots k) ≃ WedgePowerSlots (k+1) where
    …

    Mentions: OAI.Mahler.WedgePowerSlots

  2. def OAI.Mahler.sphereFluxFrame line 28

    Source documentation

    The positive frame is exactly x_1,y_1,...,x_n,y_n.

    noncomputable def sphereFluxFrame (k : ℕ) :
        Fin 1 ⊕ (Fin 1 ⊕ WedgePowerSlots k) → ComplexEuclidean (k+1) :=
    …

    Mentions: OAI.Mahler.WedgePowerSlots, OAI.Mahler.ComplexEuclidean

  3. lemma OAI.Mahler.sphereFluxFrame_positive line 32
  4. def OAI.Mahler.sphereNormal line 38

    Source documentation

    The real metric dual of the outward unit normal, with complex-valued output.

    noncomputable def sphereNormal {n : ℕ} (z : ComplexEuclidean n) :
        ComplexEuclidean n [⋀^Fin 1]→ₗ[ℝ] ℂ :=
    …

    Mentions: OAI.Mahler.ComplexEuclidean

  5. def OAI.Mahler.sphereDensity line 44

    Source documentation

    Surface density of a top degree form: evaluate normal^flat wedge omega on the positively oriented Euclidean coordinate frame.

    noncomputable def sphereDensity (k : ℕ) (z : ComplexEuclidean (k+1))
        (a : ComplexEuclidean (k+1) [⋀^Fin 1 ⊕ WedgePowerSlots k]→ₗ[ℝ] ℂ) : ℂ :=
    …

    Mentions: OAI.Mahler.ComplexEuclidean, OAI.Mahler.WedgePowerSlots

  6. def OAI.Mahler.sphereJetDensity line 48
  7. lemma OAI.Mahler.continuous_sphereJetDensity line 52
  8. def OAI.Mahler.unitSphereFlux line 62

    Source documentation

    Actual complex Bochner integral against Euclidean unit-sphere area.

    noncomputable def unitSphereFlux (k : ℕ) (u : ComplexEuclidean (k+1) → ℂ) : ℂ :=
    …

    Mentions: OAI.Mahler.ComplexEuclidean

  9. def OAI.Mahler.smallSphereFlux line 68

    Source documentation

    Radius-r sphere flux in the positive radial parametrization. The surface Jacobian is r^(2k+1); the normal is z, directed out of the ball.

    noncomputable def smallSphereFlux (k : ℕ) (u : ComplexEuclidean (k+1) → ℂ) (r : ℝ) : ℂ :=
    …

    Mentions: OAI.Mahler.ComplexEuclidean

  10. lemma OAI.Mahler.boundaryForm_pullback_scale line 73
  11. theorem OAI.Mahler.smallSphereFlux_eq_unit line 85

    Source documentation

    Pointwise pullback proves equality of the actual sphere integrals.

    theorem smallSphereFlux_eq_unit {k : ℕ} {u : ComplexEuclidean (k+1) → ℂ} {r : ℝ}
        (hu : ∀ z : sphere (0 : ComplexEuclidean (k+1)) 1,
          ContDiffAt ℝ 2 u (r • (z : ComplexEuclidean (k+1)))) (c : ℂ) :
        smallSphereFlux k u r = unitSphereFlux k (fun y => u (r • y) - c) := by
    …

    Mentions: OAI.Mahler.ComplexEuclidean, OAI.Mahler.smallSphereFlux, OAI.Mahler.unitSphereFlux