OAI/GroupTheory/PolycyclicRecognition/Algebra/TemplateSymmetries.lean

GitHub source file

3 declarations, 0 contain sorry, 0 declared as axioms

The finite template-preserving group from the manuscript

Preserving the support exponent of every compact convex template is stronger than preserving only its values on segments. This file keeps those groups distinct and proves the required inclusion and finiteness.

  1. def OAI.PolycyclicRecognition.templateSymmetryGroup line 23

    Source documentation

    The group in equation (support-symmetry-group) of boxes.tex.

    def templateSymmetryGroup (D : SupportDatum W I B) : Subgroup (W ≃ₗ[ℝ] W) where
    …

    Mentions: OAI.PolycyclicRecognition.SupportDatum

  2. theorem OAI.PolycyclicRecognition.templateSymmetry_mem_linearSupportSymmetry line 44

    Source documentation

    Every template symmetry is an isometry of the segment norm.

    theorem templateSymmetry_mem_linearSupportSymmetry
        (D : SupportDatum W I B) (A : templateSymmetryGroup D) :
        A.val ∈ linearSupportSymmetryGroup D := by
    …

    Mentions: OAI.PolycyclicRecognition.SupportDatum, OAI.PolycyclicRecognition.templateSymmetryGroup, OAI.PolycyclicRecognition.linearSupportSymmetryGroup

  3. instance OAI.PolycyclicRecognition.finite_templateSymmetryGroup line 61