OAI/GroupTheory/PolycyclicRecognition/Analysis/PairChartSampling.lean
4 declarations, 0 contain sorry, 0 declared as axioms
Exact normalized-pair identities for chart sampling
The action in this development is a left action obtained by inverting the manuscript's right-translation parameter. The identities below keep that inversion explicit.
- def
OAI.PolycyclicRecognition.chartOccupationPointline 23Source documentation
Normalization at the actual chart point, including the deterministic suffix between the two sampled factors.
def chartOccupationPoint (p : NormalizedPair G Λ) (x a k d : G) : NormalizedPair G Λ := normalizedTranslate (x * a * k * d) p …Mentions: OAI.PolycyclicRecognition.NormalizedPair, OAI.PolycyclicRecognition.normalizedTranslate
- theorem
OAI.PolycyclicRecognition.chartOccupationPoint_right_factorline 28Source documentation
A right move in the second factor changes only that factor.
theorem chartOccupationPoint_right_factor (p : NormalizedPair G Λ) (x a k d v : G) : v⁻¹ • chartOccupationPoint p x a k d = chartOccupationPoint p x a k (d * v) := by …Mentions: OAI.PolycyclicRecognition.NormalizedPair, OAI.PolycyclicRecognition.chartOccupationPoint
- theorem
OAI.PolycyclicRecognition.chartOccupationPoint_normal_factorline 40Source documentation
A right move in the normal factor changes the first sampled factor by the precise conjugate estimated by interior slack. No factorization uniqueness is needed.
theorem chartOccupationPoint_normal_factor (p : NormalizedPair G Λ) (x a k d u : G) : u⁻¹ • chartOccupationPoint p x a k d = chartOccupationPoint p x (a * (k * (d * u * d⁻¹) * k⁻¹)) k d := by …Mentions: OAI.PolycyclicRecognition.NormalizedPair, OAI.PolycyclicRecognition.chartOccupationPoint
- theorem
OAI.PolycyclicRecognition.continuous_chartOccupationPointline 49Source documentation
Sampling is continuous in all four group coordinates.
theorem continuous_chartOccupationPoint (p : NormalizedPair G Λ) : Continuous (fun z : (G × G) × (G × G) => chartOccupationPoint p z.1.1 z.1.2 z.2.1 z.2.2) := by …Mentions: OAI.PolycyclicRecognition.NormalizedPair, OAI.PolycyclicRecognition.chartOccupationPoint