Numerator Coefficient Uniqueness #
Diff5 general numerator: f(φ²z) - a·f(φz) + b·f(z) - a·f(ψz) + f(ψ²z) Diff6 general numerator: f(φ³z) - A·f(φ²z) + B·f(φz) - B·f(ψz) + A·f(ψ²z) - f(ψ³z)
The coefficients are uniquely determined by the kernel conditions.
Diff6 general numerator with parameters (A, B)
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Condition C1: Diff5[id] = 0 iff (φ² + ψ²) - a(φ + ψ) + b = 0
Diff5 coefficient uniqueness: Diff5[1] = 0 and Diff5[id] = 0 determine a = -1, b = -4
Diff5_general with determined coefficients equals Diff5
Condition D1: Diff6[id] = 0 iff F₃ - A·F₂ + B·F₁ = 0, i.e., 2 - A + B = 0
Diff6 coefficient uniqueness: Diff6[id] = 0 and Diff6[x²] = 0 determine A = 3, B = 1
Diff6_general with determined coefficients equals Diff6
Complete coefficient uniqueness for Diff5 and Diff6
Half-order mixing parameter: λ = 2/(φ + 2) = 2/(φ² + 1) ≈ 0.5528
Equations
- FUST.DζOperator.halfOrderParam = 2 / (↑FUST.φ + 2)
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Alternative form: λ = 2/(φ² + 1)
Uniqueness condition: halfOrderParam satisfies μ·(φ² + 1) = 2
Diff7 Algebraic Reduction to Diff6 #
Diff7 antisymmetric numerator form: [1, -a, b, -c, +c, -b, +a, -1] Diff7(a,b,c)f = f(φ⁴z) - a·f(φ³z) + b·f(φ²z) - c·f(φz) + c·f(ψz) - b·f(ψ²z) + a·f(ψ³z) - f(ψ⁴z)
Key result: ker(Diff7) = ker(Diff6) implies Diff7 provides no new structure.
Condition E0: Diff7[1] = 0 holds for antisymmetric form (coefficient sum = 0)
Diff7 with constrained coefficients: a arbitrary, b = 3a - 9, c = a - 6
Equations
- FUST.DζOperator.Diff7_constrained a f z = FUST.DζOperator.Diff7_general a (3 * a - 9) (a - 6) f z
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Diff7_constrained annihilates constants
Diff7_constrained annihilates linear functions
Diff7_constrained annihilates quadratic functions
ker(Diff7) = ker(Diff6): Diff7 annihilates {1, z, z²} (same as Diff6 kernel)
ζ₆ convolution filters: AFNum and SymNum #
Anti-Fibonacci sequence: C_n = C_{n-1} - C_{n-2}, C_0=0, C_1=1. Period 6: [0, 1, 1, 0, -1, -1]. Recurrence mirrors ζ₆²=ζ₆-1.
AFNum: antisymmetric filter with coefficients C_k = [0,1,1,0,-1,-1] SymNum: symmetric filter with coefficients 2Re(ζ₆^k) = [2,1,-1,-2,-1,1]
For s ≡ 1 mod 6: AFNum selects AF_coeff = 2i√3, SymNum selects 6. For s ≡ 5 mod 6: AFNum selects -AF_coeff, SymNum selects 6. For s ≡ 0,2,3,4 mod 6: both filters annihilate.
Symmetric 6-point: Σ 2Re(ζ₆^k) · g(ζ₆^k · z), coefficients [2,1,-1,-2,-1,1]
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Dζ operator #
Rank-2 operator on ⟨φ,ζ₆⟩ ≅ ℤ × ℤ/6ℤ. C(a,k) = AF_k·Φ_A(a) + SY_k·Φ_S(a) where: Φ_A = Diff6 + Diff2 - Diff4: antisymmetric channel Φ_S = 2·Diff5 + Diff3 + μ·Diff2: symmetric channel, μ = 2/(φ+2) Half-period: C(a, k+3) = -C(a, k) from AF/SY anti-periodicity.
Φ_A: φ-numerator = Diff6 + Diff2 - Diff4, all 6 ops AF channel
Equations
- FUST.DζOperator.Φ_A f z = FUST.DζOperator.Diff6 f z + FUST.DζOperator.Diff2 f z - FUST.DζOperator.Diff4 f z
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Φ_S: φ-numerator = 2·Diff5 + Diff3 + μ·Diff2, all 6 ops SY channel
Equations
- FUST.DζOperator.Φ_S f z = 2 * FUST.DζOperator.Diff5 f z + FUST.DζOperator.Diff3 f z + 2 / (↑FUST.φ + 2) * FUST.DζOperator.Diff2 f z
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Dζ: rank-2 on lattice ⟨φ,ζ₆⟩, encoding all 6 operators
Equations
- FUST.DζOperator.Dζ f z = (FUST.DζOperator.AFNum (FUST.DζOperator.Φ_A f) z + FUST.DζOperator.SymNum (FUST.DζOperator.Φ_S f) z) / z
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Fourier coefficients: AF = 2i√3, SY = 6 #
For f = w^s with s coprime to 6, the ζ₆ Fourier coefficients are: AFNum factor = ζ₆^s + ζ₆^{2s} - ζ₆^{4s} - ζ₆^{5s} SymNum factor = 2 + ζ₆^s - ζ₆^{2s} - 2ζ₆^{3s} - ζ₆^{4s} + ζ₆^{5s} For s ≡ 1 mod 6: AF = 2i√3, SY = 6. For s ≡ 5 mod 6: AF = -2i√3, SY = 6.
Monomial mode selection: (ζ₆^j)^{6k+r} = ζ₆^{jr} #
Mod 6 vanishing: AFNum and SymNum kill w^n for gcd(n,6) > 1 #
For n ≡ 0,2,3,4 mod 6, the ζ₆-multiplexing sums vanish: AF_n := ζ₆ⁿ + ζ₆²ⁿ - ζ₆⁴ⁿ - ζ₆⁵ⁿ = 0 SY_n := 2 + ζ₆ⁿ - ζ₆²ⁿ - 2ζ₆³ⁿ - ζ₆⁴ⁿ + ζ₆⁵ⁿ = 0
Norm squared decomposition: |6a + 2i√3·b|² = 12(3a² + b²) #
The unified Dζ output for monomial z^s decomposes as: Re(Dζ) = 6·Φ_S (symmetric/rotation channel, weight 3) Im(Dζ) = ±2√3·Φ_A (antisymmetric/boost channel, weight 1) The 3:1 weight ratio in |Dζ|² encodes I4 = Fin 1 ⊕ Fin 3.
Φ_S 3-component decomposition: Diff5 + Diff3 + μ·Diff2 #
Φ_S decomposes into 3 independent sub-operators (Dn numerators Diff2/Diff3/Diff5). For monomials z^s, the coefficients σ_Diff_n(s) = Diff_n(z^s)/z^s form rank-3 vectors across s=1,5,7, proving Φ_S carries Fin 3 of information.
Golden ratio powers as F_n·φ + F_{n-1} #
Sub-operator coefficient values #
The 3×3 det of [σ_Diff5, σ_Diff3, σ_Diff2] at s=1,5,7 is -6952(φ-ψ) ≠ 0: rank 3.
Dζ Gauge Covariance #
Dζ(f(c·))(z) = c · Dζ(f)(c·z) for any c ≠ 0. "Continuity without limits": every observer at scale φⁿ sees identical algebraic structure. A continuous-parameter limit (D_t → θ) would only parametrize the φ-direction and cannot extend to full Dζ, because the ζ₆-direction is compact-discrete (ℤ/6ℤ, period 6).