OAI/NumberTheory/DukePrimeDegree/Geometry/BilateralNeutralLifts.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Bilateral observation fibers have neutral relative displacement
The same small radial cells are used in both time directions. Uniqueness of the small lift identifies the two triangular lifts; their common lift commutes with the diagonal flow. This supplies the geometry needed to bound the entropy left over after the complete observation itinerary.
- lemma
OAI.DukePrimeDegree.commute_diagonalOneParameter_of_weight_supportline 20 - theorem
OAI.DukePrimeDegree.exists_radial_radius_bilateral_neutral_liftsline 35