OAI/Analysis/CircleDomains/Modulus/HitNormTopology.lean

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4 declarations, 0 contain sorry, 0 declared as axioms

Real-valued hit norms, their dual finite tests, and uniform strict inequalities over compact configuration spaces. These are the topological estimates used in the finite split of path-law fusion.

  1. theorem OAI.CircleDomainRigidity.pathHitReal_upperSemicontinuous line 22
  2. theorem OAI.CircleDomainRigidity.hasHitNormBound_iff_sum_sq_le line 34
  3. theorem OAI.CircleDomainRigidity.isOpen_forall_compact_upper_bound line 55

    Source documentation

    For compact configurations, a joint upper semicontinuous strict bound persists on an open set of centers. This is the neighborhood step of the finite split.

    theorem isOpen_forall_compact_upper_bound {Z T : Type*}
        [TopologicalSpace Z] [TopologicalSpace T] [CompactSpace T]
        {f : Z × T → ℝ} (hf : UpperSemicontinuous f) (C : ℝ) :
        IsOpen {z | ∀ t, f (z, t) < C} := by
    …
  4. theorem OAI.CircleDomainRigidity.upperSemicontinuous_nonnegative_mul line 66