OAI/GroupTheory/PolycyclicRecognition/Algebra/CouplingLocalL2.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Local square integrability of the coupling transfers
A square-integrable section transfer becomes locally square integrable after adding the continuous target height. This property is preserved by the actual change to inverse coordinates.
- theorem
OAI.PolycyclicRecognition.pairTransferLift_memLp_compactline 30Source documentation
The lifted transfer is square integrable on every compact subset of the first product chart.
theorem pairTransferLift_memLp_compact (m : Measure G) [IsFiniteMeasureOnCompacts m] (μ : Measure (NormalizedPair G Λ)) [IsFiniteMeasure μ] (π : G →* Multiplicative W) (hπ : Continuous fun g => (π g).toAdd) {φ : NormalizedPair G Λ → W} (hφ : MemLp φ 2 μ) {K : Set (G × NormalizedPair G Λ)} (hK : IsCompact K) : MemLp (pairTransferLift π φ) 2 ((m.prod μ).restrict K) := by …Mentions: OAI.PolycyclicRecognition.NormalizedPair, OAI.PolycyclicRecognition.pairTransferLift
- theorem
OAI.PolycyclicRecognition.inverseFiberTransfer_memLp_compactline 55Source documentation
The corrected transfer in the inverse chart is locally square integrable for the coupling measure.
theorem inverseFiberTransfer_memLp_compact (m : Measure G) [IsFiniteMeasureOnCompacts m] (μ : Measure (NormalizedPair G Λ)) [IsFiniteMeasure μ] (π l : G →* Multiplicative W) (hπ : Continuous fun g => (π g).toAdd) (hl : Continuous fun g => (l g).toAdd) {φ : NormalizedPair G Λ → W} (hφ : MemLp φ 2 μ) {K : Set (NormalizedPair G Λ × G)} (hK : IsCompact K) : MemLp (inverseFiberTransfer π l φ) 2 ((inversePairCoupling m μ).restrict K) := by …Mentions: OAI.PolycyclicRecognition.NormalizedPair, OAI.PolycyclicRecognition.inverseFiberTransfer, OAI.PolycyclicRecognition.inversePairCoupling