OAI/GroupTheory/PolycyclicRecognition/Analysis/ProfileCompactness.lean
1 declarations, 0 contain sorry, 0 declared as axioms
Compact containment for families of chart profiles
- theorem
OAI.PolycyclicRecognition.exists_compact_containing_profilesline 18Source documentation
Equicontinuous profiles with pointwise bounded values lie in one compact set for locally uniform convergence. The domain need not itself be compact.
theorem exists_compact_containing_profiles (F : I → C(X, W)) (hequi : Equicontinuous (fun i x => F i x)) (w₀ : W) (hbound : ∀ x, ∃ R : ℝ, ∀ i, dist (F i x) w₀ ≤ R) : ∃ S : Set C(X, W), IsCompact S ∧ ∀ i, F i ∈ S := by …