OAI/AlgebraicGeometry/PlaneCurves/ThetaPolynomialBases.lean

GitHub source file

7 declarations, 0 contain sorry, 0 declared as axioms

Specialized theta and polynomial bases of section spaces

  1. def OAI.Nagata.Workers.W10.polynomialSectionCoordinates line 21
  2. theorem OAI.Nagata.Workers.W10.polynomialSectionCoordinates_apply line 27
  3. def OAI.Nagata.Workers.W10.polynomialSectionBasisFromCoefficients line 34

    Source documentation

    Conditional assembly from actual block coefficient maps and actual delta vectors. Each analytic input is exposed; no branch basis is supplied as a field.

    def polynomialSectionBasisFromCoefficients (τ γL γP : ℂ) (d m : ℤ) (P : ℂ → ℂ)
        (I : Fin ((d / 3).toNat + 1) → Type*) [∀ j, Fintype (I j)] [∀ j, DecidableEq (I j)]
        (c : ∀ j, coefficientSpace τ γL γP d m (j.val : ℤ) P →ₗ[ℂ] (I j → ℂ))
        (hc : ∀ j, Function.Injective (c j))
        (v : ∀ j, I j → coefficientSpace τ γL γP d m (j.val : ℤ) P)
        (hv : ∀ j i, c j (v j i) = Pi.single i 1) :
        Basis (Σ j, I j) ℂ (polynomialSections τ γL γP d m P) :=
    …
  4. theorem OAI.Nagata.Workers.W10.polynomialSectionBasis_as_monomial line 46

    Source documentation

    Every basis vector is the literal fiber monomial with its actual block section.

    theorem polynomialSectionBasis_as_monomial (τ γL γP : ℂ) (d m : ℤ) (P : ℂ → ℂ)
        (I : Fin ((d / 3).toNat + 1) → Type*) [∀ j, Fintype (I j)] [∀ j, DecidableEq (I j)]
        (c : ∀ j, coefficientSpace τ γL γP d m (j.val : ℤ) P →ₗ[ℂ] (I j → ℂ))
        (hc : ∀ j, Function.Injective (c j))
        (v : ∀ j, I j → coefficientSpace τ γL γP d m (j.val : ℤ) P)
        (hv : ∀ j i, c j (v j i) = Pi.single i 1)
        (j : Fin ((d / 3).toNat + 1)) (i : I j) :
        (polynomialSectionBasisFromCoefficients τ γL γP d m P I c hc v hv ⟨j, i⟩).val =
          Polynomial.monomial j.val (v j i).val := by
    …

    Mentions: OAI.Nagata.Workers.W10.polynomialSectionBasisFromCoefficients

  5. def OAI.Nagata.Workers.W10.centeredThetaSectionBasis line 81

    Source documentation

    The genuine centered source theta family is a basis for every real parameter 0 < tau < 1, with the literal nonintegral residue interval.

    def centeredThetaSectionBasis :
        Basis (thetaIndices (σ - x₀ * (n : ℝ)) n) ℂ
          (automorphicSections (τ : ℂ) n (ε * ((τ ^ σ : ℝ) : ℂ))) := by
    …
  6. theorem OAI.Nagata.Workers.W10.centeredThetaSectionBasis_apply line 99
  7. theorem OAI.Nagata.Workers.W10.centeredThetaSectionBasis_local line 107

    Source documentation

    Exact source series expression of the actual constructed basis vector.

    theorem centeredThetaSectionBasis_local
        (K : thetaIndices (σ - x₀ * (n : ℝ)) n) (x : ℂ) :
        (centeredThetaSectionBasis n hn σ x₀ hε hunit hτ hτone hC hU K).val
          (((τ ^ x₀ : ℝ) : ℂ) * Complex.exp x) =
        ∑' p : ℤ, normalizedThetaTerm (n : ℝ) ((K.val : ℝ) - σ + x₀ * (n : ℝ))
          (K.val : ℝ) ε τ p x := by
    …

    Mentions: OAI.Nagata.Workers.W10.centeredThetaSectionBasis