Full ring coherent linear form one le norm
ProvedD1Bound5.full_ring_coherent_linear_form_one_le_normdiophantine-tuplesnumber-theory
For an actual tuple in the FULL integer ring of an imaginary quadratic field, every nonzero polynomial-weighted coherent linear form has complex modulus at least one. Its integrality is derived from the tuple's square witnesses and the analytic branch identities.
Preamble
import Mathlib.Algebra.BigOperators.NatAntidiagonal import Mathlib.Algebra.QuadraticAlgebra.Basic import Mathlib.Algebra.Ring.Basic import Mathlib.Algebra.Ring.Equiv import Mathlib.Analysis.Analytic.Binomial import Mathlib.Analysis.Complex.Basic import Mathlib.Analysis.Complex.Norm import Mathlib.Analysis.Normed.Ring.Basic import Mathlib.Analysis.SpecificLimits.Normed import Mathlib.Data.Finset.Card import Mathlib.Data.Finset.Insert import Mathlib.Data.Int.GCD import Mathlib.Data.Sym.Basic import Mathlib.Data.Sym.Card import Mathlib.LinearAlgebra.Dimension.Free import Mathlib.LinearAlgebra.Lagrange import Mathlib.NumberTheory.NumberField.InfinitePlace.TotallyRealComplex import Mathlib.NumberTheory.NumberField.Norm import Mathlib.RingTheory.Binomial import Mathlib.RingTheory.MvPolynomial.Symmetric.Defs import Mathlib.Tactic.Linarith import Mathlib.Tactic.LinearCombination import Definitions.Def_D1Bound5_CoherentIntegralForms_Definitions import Definitions.Def_D1Bound5_IsD1
Formal statement
section
open Finset
open scoped NumberField
open Module
namespace D1Bound5
theorem _root_.D1Bound5.full_ring_coherent_linear_form_one_le_norm
{K ι : Type*} [Field K] [NumberField K]
[NumberField.IsTotallyComplex K] [Fintype ι]
(hK : finrank ℚ K = 2) (phi : K →+* ℂ)
{T : Finset (𝓞 K)} (hT : IsD1 T) {p q : 𝓞 K}
(hp : p ∈ T) (hq : q ∈ T) (hpq : p ≠ q)
(a c : ι → 𝓞 K) (Delta : 𝓞 K)
(ha : ∀ i, a i ∈ T) (hap : ∀ i, a i ≠ p) (haq : ∀ i, a i ≠ q)
(eta : ℂ) (heta : eta ^ 2 = phi (p : K) * phi (q : K))
(hL : -phi (Delta : K) * coherentTerminalRoot (phi (p : K)) (phi (q : K)) eta +
∑ i, phi (c i : K) *
coherentAnchorRoot (phi (a i : K)) (phi (p : K)) (phi (q : K)) eta ≠ 0) :
1 ≤ ‖-phi (Delta : K) * coherentTerminalRoot (phi (p : K)) (phi (q : K)) eta +
∑ i, phi (c i : K) *
coherentAnchorRoot (phi (a i : K)) (phi (p : K)) (phi (q : K)) eta‖ := by sorry
end D1Bound5
end
Source
D1Bound5/CoherentIntegralForms.lean, lines 94-129, SHA-256 81e6a044e834ea1f7a20cfce931dfefd9cdd8cbc6a1dc7467c69328d64c38e4c. Project: https://github.com/tomislav-math/d1-bound5-lean