OAI/Topology/ArtinGroups/ParabolicIntersections/ParabolicReadBraid.lean
2 declarations, 0 contain sorry, 0 declared as axioms
The parabolic read respects braid relations by the reduced-word theorem.
- theorem
OAI.HarmonicArtin.ParabolicIntersections.parabolicRead_word_eqline 17Source documentation
Equal reduced galleries have equal positive reads in the parabolic.
theorem parabolicRead_word_eq (w : M.Group) (u v : List S) (hu : (cs).IsReduced u) (hv : (cs).IsReduced v) (he : (cs).wordProd u=(cs).wordProd v) : wordArtin R (parabolicRead cs J w u)=wordArtin R (parabolicRead cs J w v) := by …Mentions: OAI.HarmonicArtin.wordArtin, OAI.HarmonicArtin.ParabolicIntersections.parabolicRead
- theorem
OAI.HarmonicArtin.ParabolicIntersections.parabolicRead_braidline 31Source documentation
The precise braid compatibility needed for the parabolic retraction.
theorem parabolicRead_braid (w : M.Group) (i j : S) : wordArtin R (parabolicRead cs J w (altList i j (M i j))) = wordArtin R (parabolicRead cs J w (altList j i (M i j))) := by …Mentions: OAI.HarmonicArtin.wordArtin, OAI.HarmonicArtin.ParabolicIntersections.parabolicRead