OAI/Analysis/KadisonKastler/MatrixEmbedding.lean
13 declarations, 0 contain sorry, 0 declared as axioms
Trace-preserving finite-matrix embeddings from matrix units
- def
OAI.KadisonKastler.matrixUnitsEmbeddingline 20Source documentation
The existing algebraic matrix-unit representation with the C⋆-matrix domain.
def matrixUnitsEmbedding (E : Generator.MatrixUnitSystem ι A) : CStarMatrix ι ι ℂ →⋆ₐ[ℂ] A := …
Mentions: OAI.Generator.MatrixUnitSystem
- theorem
OAI.KadisonKastler.matrixUnitsEmbedding_applyline 23 - theorem
OAI.KadisonKastler.matrixUnitsEmbedding_singleline 27 - theorem
OAI.KadisonKastler.matrixUnitsEmbedding_injectiveline 34 - theorem
OAI.KadisonKastler.norm_matrixUnitsEmbeddingline 39 - theorem
OAI.KadisonKastler.matrixUnits_trace_diagonalline 44 - theorem
OAI.KadisonKastler.matrixUnits_trace_offDiagonalline 58 - theorem
OAI.KadisonKastler.matrixUnitsEmbedding_traceline 64 - theorem
OAI.KadisonKastler.matrixTrace_coefficientMatrixMapline 89 - def
OAI.KadisonKastler.finiteMatrixEmbeddingline 104Source documentation
The concrete finite model embeds by the chosen inner matrix units, with the outer matrix coordinates represented on the Hilbert direct sum.
def finiteMatrixEmbedding (E : Generator.MatrixUnitSystem (Fin (j + 1)) (Algebra M)) : FiniteMatrixModel n j →⋆ₐ[ℂ] Algebra (matrixVonNeumann (ι := Fin n) M) := …Mentions: OAI.Generator.MatrixUnitSystem, OAI.KadisonKastler.Algebra, OAI.KadisonKastler.FiniteMatrixModel, OAI.KadisonKastler.matrixVonNeumann
- theorem
OAI.KadisonKastler.matrixVonNeumannTrace_mapline 108 - theorem
OAI.KadisonKastler.finiteMatrixEmbedding_traceline 116 - theorem
OAI.KadisonKastler.finiteMatrixEmbedding_scalarline 129Source documentation
The outer scalar matrix algebra is fixed by every choice of inner matrix units.
theorem finiteMatrixEmbedding_scalar (E : Generator.MatrixUnitSystem (Fin (j + 1)) (Algebra M)) (x : CStarMatrix (Fin n) (Fin n) ℂ) : finiteMatrixEmbedding E (coefficientMatrixMap (StarAlgHom.ofId ℂ (CStarMatrix (Fin (j + 1)) (Fin (j + 1)) ℂ)) x) = matrixAlgebraHom M (coefficientMatrixMap (StarAlgHom.ofId ℂ (Algebra M)) x) := by …Mentions: OAI.Generator.MatrixUnitSystem, OAI.KadisonKastler.Algebra, OAI.KadisonKastler.finiteMatrixEmbedding, OAI.KadisonKastler.coefficientMatrixMap, OAI.KadisonKastler.matrixAlgebraHom