OAI/GroupTheory/PolycyclicRecognition/Geometry/CartanDMetric.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Metric control of the actual Cartan factor charts
- theorem
OAI.PolycyclicRecognition.exists_cartan_d_chart_metric_boundline 32Source 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
- theorem
OAI.PolycyclicRecognition.cartan_d_metric_sublinear_of_coordinatesline 78Source 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