OAI/GroupTheory/PolycyclicRecognition/Lattices/SolvableLatticePolycyclic.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Polycyclicity of lattices in simply connected solvable Lie groups
Complex adjoint weights include rotations. Their normalized additive lifts have nilpotent Lie kernel and a real vector-space quotient. Discrete subgroups of the kernel are polycyclic, and finite generation controls the abelian image.
- theorem
OAI.PolycyclicRecognition.isPolycyclic_finitelyGenerated_discrete_solvableLieGroupline 21Source documentation
Every finitely generated discrete subgroup of a connected simply connected finite-dimensional real solvable Lie group is polycyclic.
theorem isPolycyclic_finitelyGenerated_discrete_solvableLieGroup {E G : Type} [NormedAddCommGroup E] [NormedSpace ℝ E] [FiniteDimensional ℝ E] [MetricSpace G] [ChartedSpace E G] [Group G] [LieGroup (𝓘(ℝ, E)) ⊤ G] [SimplyConnectedSpace G] [Group.IsSolvable G] (Γ : Subgroup G) [DiscreteTopology Γ] [Group.FG Γ] : IsPolycyclic Γ := by …Mentions: OAI.PolycyclicRecognition.IsPolycyclic
- theorem
OAI.PolycyclicRecognition.isPolycyclic_uniformLattice_solvableLieGroupline 42Source documentation
The full solvable lattice theorem used by the recognition argument.
theorem isPolycyclic_uniformLattice_solvableLieGroup (S : SimplyConnectedSolvableLieModel) (Λ : Subgroup S.carrier) (hΛ : IsUniformLattice Λ) : IsPolycyclic Λ := by …Mentions: OAI.PolycyclicRecognition.SimplyConnectedSolvableLieModel, OAI.PolycyclicRecognition.IsPolycyclic