OAI/GroupTheory/PolycyclicRecognition/Algebra/TemplateInverseRays.lean
1 declarations, 0 contain sorry, 0 declared as axioms
Locating each source generator in the pulled-back target rays
- theorem
OAI.PolycyclicRecognition.templateSymmetry_inverse_weight_rayline 15Source documentation
Apply the ray theorem to the inverse symmetry. This identifies the target ray whose pullback contains any specified source generator.
theorem templateSymmetry_inverse_weight_ray (D : SupportDatum W I B) (A : templateSymmetryGroup D) (j : I) (hj : D.weight j ≠ 0) : ∃ (i : I) (c : ℝ), 0 < c ∧ (D.weight i).comp A.val.toLinearMap = c • D.weight j := by …Mentions: OAI.PolycyclicRecognition.SupportDatum, OAI.PolycyclicRecognition.templateSymmetryGroup