OAI/Analysis/KadisonKastler/MatrixLiftBounds.lean
5 declarations, 0 contain sorry, 0 declared as axioms
The dimension-free commutator estimate for finite model lifts
- theorem
OAI.KadisonKastler.matrixUnitsEmbedding_mapline 21 - def
OAI.KadisonKastler.finiteMatrixAmbientEmbeddingline 32Source documentation
The coordinate finite model, now viewed directly as a matrix of operators on the original Hilbert space.
def finiteMatrixAmbientEmbedding (E : Generator.MatrixUnitSystem (Fin (j + 1)) (Algebra M)) : FiniteMatrixModel n j →⋆ₐ[ℂ] CStarMatrix (Fin n) (Fin n) (H →L[ℂ] H) := …Mentions: OAI.Generator.MatrixUnitSystem, OAI.KadisonKastler.Algebra, OAI.KadisonKastler.FiniteMatrixModel
- theorem
OAI.KadisonKastler.mappedMatrixUnits_algebra_leline 36 - theorem
OAI.KadisonKastler.finiteMatrixAmbientEmbedding_entry_memline 46 - theorem
OAI.KadisonKastler.finiteMatrix_unitary_commutator_leline 58Source documentation
Every coordinate finite-matrix unitary has commutator bounded by twice the scalar derivation bound, uniformly in both matrix sizes.
theorem finiteMatrix_unitary_commutator_le (E : Generator.MatrixUnitSystem (Fin (j + 1)) (Algebra M)) (h : H →L[ℂ] H) {δ : ℝ} (hδ : 0 ≤ δ) (hb : ∀ a ∈ M, ‖h * a - a * h‖ ≤ δ * ‖a‖) (u : unitary (FiniteMatrixModel n j)) : let v := Unitary.map (StarMonoidHom.ofClass (finiteMatrixAmbientEmbedding E)) u …Mentions: OAI.Generator.MatrixUnitSystem, OAI.KadisonKastler.Algebra, OAI.KadisonKastler.FiniteMatrixModel, OAI.KadisonKastler.finiteMatrixAmbientEmbedding