Full ring finite PRow Form exists one le norm
ProvedD1Bound5.full_ring_finitePRowForm_exists_one_le_normdiophantine-tuplesnumber-theory
A genuine full-ring integral row has norm at least one. Both the nonsingularity and the integrality of this constructed P matrix are proved here; they are not supplied as separate approximation certificates.
Preamble
import Mathlib.Algebra.BigOperators.Fin import Mathlib.Algebra.QuadraticAlgebra.Basic import Mathlib.Algebra.Ring.Basic import Mathlib.Algebra.Ring.Equiv import Mathlib.Analysis.Complex.Norm import Mathlib.Data.Finset.Card import Mathlib.Data.Int.GCD import Mathlib.LinearAlgebra.Dimension.Free import Mathlib.LinearAlgebra.Matrix.Determinant.Basic import Mathlib.LinearAlgebra.Matrix.NonsingularInverse import Mathlib.NumberTheory.NumberField.InfinitePlace.TotallyRealComplex import Mathlib.NumberTheory.NumberField.Norm import Mathlib.Tactic.FinCases import Mathlib.Tactic.Linarith import Mathlib.Tactic.LinearCombination import Mathlib.Tactic.NormNum import Mathlib.Tactic.Ring import Definitions.Def_D1Bound5_FinitePIntegralRows_Definitions
Formal statement
section
open scoped NumberField
open Module
namespace D1Bound5
theorem _root_.D1Bound5.full_ring_finitePRowForm_exists_one_le_norm
{K : Type*} [Field K] [NumberField K] [NumberField.IsTotallyComplex K]
(hK : finrank ℚ K = 2) (phi : K →+* ℂ)
(a b s c z rA rB rS : 𝓞 K)
(ha : a ≠ 0) (hb : b ≠ 0) (hs : s ≠ 0)
(hab : a ≠ b) (has : a ≠ s) (hbs : b ≠ s) (hz : z ≠ 0)
(hAB : ‖phi (a : K)‖ ≤ ‖phi (b : K)‖)
(hBS : ‖phi (b : K)‖ ≤ ‖phi (s : K)‖)
(hC : 200*‖phi (s : K)‖ ≤ ‖phi (c : K)‖) :
∃ i : Fin 4, 1 ≤ ‖finitePRowForm (phi (a : K)) (phi (b : K)) (phi (s : K))
(phi (c : K)) (phi (z : K)) (phi (rA : K)) (phi (rB : K)) (phi (rS : K)) i‖ := by sorry
end D1Bound5
end
Source
D1Bound5/FinitePIntegralRows.lean, lines 140-187, SHA-256 f4ae4543e8d296d5524652a8ec1de382e8c69fd4002555ade9ad3f247eeee37c. Project: https://github.com/tomislav-math/d1-bound5-lean