OAI/Analysis/FactorGeneration/SpectralDimension.lean

GitHub source file

25 declarations, 0 contain sorry, 0 declared as axioms

Finite spectral weights of the constructed projection dimension obey an operator-norm bound. No linear trace on noncommuting elements is assumed.

  1. theorem OAI.Generator.Tracial.traceFreeDimension_finsetSum line 23
  2. theorem OAI.Generator.Tracial.traceFreeDimension_sum_of_total line 55
  3. theorem OAI.Generator.Tracial.traceFreeDimension_spectralWeight_norm_le line 68

    Source documentation

    A finite orthogonal spectral value has the required operator-norm bound.

    theorem traceFreeDimension_spectralWeight_norm_le
        (hunit : (1 : M.toStarSubalgebra) ≠ 0)
        {I : Type*} [Fintype I] (q : I → AlgebraProjection M)
        (ho : ∀ i j, i≠j → (q i).val*(q j).val=0) (c : I → ℂ) :
        ‖∑ i, c i*(traceFreeDimension hfactor hdiff (q i) : ℂ)‖ ≤
          ‖∑ i, c i • (q i).val‖ := by
    …

    Mentions: OAI.Generator.Tracial.AlgebraProjection, OAI.Generator.Tracial.traceFreeDimension

  4. theorem OAI.Generator.Tracial.traceFreeDimension_spectralWeight_sub_norm_le line 109

    Source documentation

    In a fixed orthogonal partition, the spectral-value map is contractive.

    theorem traceFreeDimension_spectralWeight_sub_norm_le
        (hunit : (1 : M.toStarSubalgebra) ≠ 0)
        {I : Type*} [Fintype I] (q : I → AlgebraProjection M)
        (ho : ∀ i j, i≠j → (q i).val*(q j).val=0) (c d : I → ℂ) :
        ‖(∑ i, c i*(traceFreeDimension hfactor hdiff (q i) : ℂ))-
          (∑ i, d i*(traceFreeDimension hfactor hdiff (q i) : ℂ))‖ ≤
          ‖(∑ i, c i • (q i).val)-(∑ i, d i • (q i).val)‖ := by
    …

    Mentions: OAI.Generator.Tracial.AlgebraProjection, OAI.Generator.Tracial.traceFreeDimension

  5. theorem OAI.Generator.Tracial.CornerPartition.dimension_joint_row line 126
  6. theorem OAI.Generator.Tracial.CornerPartition.dimension_joint_column line 136
  7. theorem OAI.Generator.Tracial.CornerPartition.dimension_weight_joint_left line 147
  8. theorem OAI.Generator.Tracial.CornerPartition.dimension_weight_joint_right line 159
  9. theorem OAI.Generator.Tracial.CornerPartition.dimension_weight_cross_norm_le line 172

    Source documentation

    Changing between two commuting partitions preserves the norm estimate.

    theorem dimension_weight_cross_norm_le (hunit : (1 : M.toStarSubalgebra) ≠ 0)
        (c : Fin Q.size → ℂ) (d : Fin R.size → ℂ) :
        ‖(∑ i, c i*(traceFreeDimension hfactor hdiff (Q.piece i) : ℂ))-
          (∑ j, d j*(traceFreeDimension hfactor hdiff (R.piece j) : ℂ))‖ ≤
          ‖(∑ i, c i • (Q.piece i).val)-(∑ j, d j • (R.piece j).val)‖ := by
    …

    Mentions: OAI.Generator.Tracial.traceFreeDimension

  10. theorem OAI.Generator.Tracial.CornerPartition.dimension_weight_eq_of_commuting_sums_eq line 184
  11. def OAI.Generator.Tracial.IsDimensionSpectralValue line 211

    Source documentation

    Approximation specification, not an assumed linear trace.

    def IsDimensionSpectralValue (x : M.toStarSubalgebra) (t : ℂ) : Prop :=
    …
  12. theorem OAI.Generator.Tracial.traceFreeDimension_exists_spectral_value line 220

    Source documentation

    Actual finite spectral approximants are Cauchy in their dimension values, and their real limit controls every commuting spectral approximation.

    theorem traceFreeDimension_exists_spectral_value
        (hunit : (1 : M.toStarSubalgebra) ≠ 0)
        (x : M.toStarSubalgebra) (hx : IsSelfAdjoint x) :
        ∃ t : ℂ, t.im=0 ∧ IsDimensionSpectralValue hfactor hdiff x t := by
    …

    Mentions: OAI.Generator.Tracial.IsDimensionSpectralValue

  13. theorem OAI.Generator.Tracial.IsDimensionSpectralValue.unique line 278
  14. def OAI.Generator.Tracial.dimensionSpectralValue line 304

    Source documentation

    This is a constructed scalar value on self-adjoint operators; it is not yet packaged as a linear functional.

    def dimensionSpectralValue (hunit : (1 : M.toStarSubalgebra) ≠ 0)
        (x : M.toStarSubalgebra) (hx : IsSelfAdjoint x) : ℂ :=
    …
  15. theorem OAI.Generator.Tracial.dimensionSpectralValue_spec line 308
  16. theorem OAI.Generator.Tracial.IsDimensionSpectralValue.norm_le line 329
  17. theorem OAI.Generator.Tracial.IsDimensionSpectralValue.on_projection line 335
  18. theorem OAI.Generator.Tracial.dimensionSpectralValue_norm_le line 378
  19. theorem OAI.Generator.Tracial.dimensionSpectralValue_projection line 383
  20. theorem OAI.Generator.Tracial.dimensionSpectralValue_one line 390
  21. theorem OAI.Generator.Tracial.IsDimensionSpectralValue.family_bound line 408
  22. theorem OAI.Generator.Tracial.dimensionSpectralValue_eq_of_approximants line 427
  23. theorem OAI.Generator.Tracial.dimensionSpectralValue_real_smul line 451
  24. theorem OAI.Generator.Tracial.dimensionSpectralValue_zero line 483
  25. theorem OAI.Generator.Tracial.dimensionSpectralValue_neg line 489