OAI/GroupTheory/PolycyclicRecognition/Geometry/CartanDMetric.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

Metric control of the actual Cartan factor charts

  1. theorem OAI.PolycyclicRecognition.exists_cartan_d_chart_metric_bound line 32

    Source documentation

    Bounded normalized coordinates in the Cartan factor have ambient distance at most a constant times the dilation scale. This follows from the actual finite generator words, not a metric-scaling hypothesis.

    theorem exists_cartan_d_chart_metric_bound
        (hExpG : IsGroupExponential ExpG)
        (realize : ExponentialLinearRealizationInput (EG := EG) (G := G))
    …

    Mentions: OAI.PolycyclicRecognition.ExponentialLinearRealizationInput

  2. theorem OAI.PolycyclicRecognition.cartan_d_metric_sublinear_of_coordinates line 78

    Source documentation

    Small normalized Cartan coordinates give sublinear ambient distance. This is the equicontinuity estimate needed after taking a limit of the finite-dimensional coordinate group laws.

    theorem cartan_d_metric_sublinear_of_coordinates
        (hExpG : IsGroupExponential ExpG)
        (realize : ExponentialLinearRealizationInput (EG := EG) (G := G))
    …

    Mentions: OAI.PolycyclicRecognition.ExponentialLinearRealizationInput