OAI/Analysis/KadisonSimilarity/Tracial/TracialGeneratedAlgebra.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Passing to the algebra normally generated by two free factors gives the intrinsic reduced-product generation hypothesis. Only ordinary L² density of the generating algebra is used; no word decomposition or operator estimate is assumed here.
- theorem
OAI.KadisonSimilarity.factorAlgebra_map_subtypeline 18 - theorem
OAI.KadisonSimilarity.TracialCornerGeometry.factorsTraciallyGenerate_of_L2_generationline 39Source documentation
Ordinary ambient L² generation yields the exact intrinsic generation hypothesis for the closed generated algebra's tracial geometry.
theorem factorsTraciallyGenerate_of_L2_generation (hA : A ≤ L) (hD : D ≤ L) (hdense : ∀ a : L, G.vector (a : P) ∈ closure (Set.range (G.vector.comp (factorAlgebra A D).subtype.toLinearMap))) : (G.baseGeometry L).FactorsTraciallyGenerate (A.comap L.subtype) (D.comap L.subtype) := by …Mentions: OAI.KadisonSimilarity.TracialCornerGeometry.factorAlgebra, OAI.KadisonSimilarity.TracialCornerGeometry.FactorsTraciallyGenerate