OAI/Algebra/Determinantal/BorderClosure.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

  1. theorem OAI.PermanentBorder.HasBorderDeterminant.coefficientwise_limit line 14

    Source documentation

    Fixed-size border representations are closed under sequential coefficientwise limits. The approximating matrices remain arbitrary complex affine matrices of exactly the original size; no uniform rate or coefficient bound is assumed.

    theorem HasBorderDeterminant.coefficientwise_limit
        {σ : Type*} [Fintype σ] {n : ℕ} {P : ℕ → Poly σ} {p : Poly σ}
        (hP : ∀ j, HasBorderDeterminant n (P j))
        (hp : ∀ d : σ →₀ ℕ,
          Tendsto (fun j => (P j).coeff d) atTop (𝓝 (p.coeff d))) :
        HasBorderDeterminant n p := by
    …

    Mentions: OAI.PermanentBorder.Poly, OAI.PermanentBorder.HasBorderDeterminant