OAI/Algebra/Determinantal/BorderClosure.lean
1 declarations, 0 contain sorry, 0 declared as axioms
- theorem
OAI.PermanentBorder.HasBorderDeterminant.coefficientwise_limitline 14Source 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