Bennett Cleared Matrix det eval of ne zero
ProvedD1Bound5.bennettClearedMatrix_det_eval_of_ne_zerodiophantine-tuplesnumber-theory
The determinant of the cleared matrix evaluates to the single coefficient of the original determinant at every nonzero value of the variable.
Preamble
import Lean.Elab.Tactic.Omega import Mathlib.Algebra.CharZero.Infinite import Mathlib.Algebra.Polynomial.BigOperators import Mathlib.Algebra.Polynomial.Degree.Operations import Mathlib.Algebra.Polynomial.Div import Mathlib.Algebra.Polynomial.PartialFractions import Mathlib.Algebra.Polynomial.RingDivision import Mathlib.Algebra.Polynomial.Roots import Mathlib.LinearAlgebra.Matrix.Polynomial import Mathlib.RingTheory.PowerSeries.Binomial import Mathlib.RingTheory.PowerSeries.Trunc import Mathlib.Tactic.Ring import Definitions.Def_D1Bound5_BennettDeterminantConstant_Definitions import Definitions.Def_D1Bound5_BennettResidualCancellation_Definitions
Formal statement
section
open Finset
namespace D1Bound5
variable {F I : Type*} [Field F] [CharZero F]
variable [Fintype I] [DecidableEq I]
theorem _root_.D1Bound5.bennettClearedMatrix_det_eval_of_ne_zero
(a : I → F) (ha : Function.Injective a) (k : ℕ) (hk : 1 ≤ k)
(ν : F) (q : I) (hq : a q = 0) (N : F) (hN : N ≠ 0) :
(bennettClearedMatrix a k ν).det.eval N =
(bennettPolynomialMatrix a k ν).det.coeff (Fintype.card I * k) := by sorry
end D1Bound5
end
Source
D1Bound5/BennettDeterminantConstant.lean, lines 24-52, SHA-256 267ae930e881e7b102ec7dd3ddb0469bc45ab29e4985e0503efec75e7c50bb50. Project: https://github.com/tomislav-math/d1-bound5-lean