Geometries of orthogonal groups and their contractions: a unified classical deformation viewpoint
classification
✦ hep-th
math-phmath.GRmath.MPmath.RA
keywords
groupscontractionsgeometriesorthogonalspacesadvancedapproachcasimirs
read the original abstract
The geometries of spaces having as groups the real orthogonal groups and some of their contractions are described from a common point of view. Their central extensions and Casimirs are explicitly given. An approach to the trigonometry of their spaces is also advanced.
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