PhysLean/HepLean/SpaceTime/LorentzGroup/Restricted.lean
2024-11-09 08:06:16 +00:00

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/-
Copyright (c) 2024 Joseph Tooby-Smith. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joseph Tooby-Smith
-/
import HepLean.SpaceTime.LorentzGroup.Basic
import HepLean.SpaceTime.LorentzGroup.Proper
import HepLean.SpaceTime.LorentzGroup.Orthochronous
import HepLean.Meta.Informal
/-!
# The Restricted Lorentz Group
This file is currently a stub.
-/
/-! TODO: Add definition of the restricted Lorentz group. -/
/-! TODO: Prove member of the restricted Lorentz group is combo of boost and rotation. -/
/-! TODO: Prove restricted Lorentz group equivalent to connected component of identity. -/
noncomputable section
open Matrix
open Complex
open ComplexConjugate
namespace LorentzGroup
informal_definition Restricted where
math :≈ "The subgroup of the Lorentz group consisting of elements which
are proper and orthochronous."
deps :≈ [``LorentzGroup, ``IsProper, ``IsOrthochronous]
end LorentzGroup