OAI/GroupTheory/PolycyclicRecognition/Analysis/ProbePivotBridge.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Exact cancellation for the source bridge at its Cartan pivot
- theorem
OAI.PolycyclicRecognition.probe_pivot_bridge_identityline 12 - theorem
OAI.PolycyclicRecognition.probe_pivot_bridge_distanceline 29Source documentation
The common ideal probe and basepoint disappear from the bridge length.
theorem probe_pivot_bridge_distance (φ : D →* MulAut N) (ι : N →* G) (κ : D →* G) (hc : ∀ d n, ι (φ d n) = κ d * ι n * (κ d)⁻¹) (S : MulAut N) (n i s k : N) (d : D) (x : G) : dist (x * (ι (coneProbeFirst S n i s) * κ d)) (x * (ι (coneProbeSecond S n i k) * κ d)) = dist 1 (ι (φ d⁻¹ (S (s⁻¹ * k)))) := by …Mentions: OAI.PolycyclicRecognition.coneProbeFirst, OAI.PolycyclicRecognition.coneProbeSecond