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Bibliographic Details
Main Authors: Cushman, Richard, van der Kallen, Wilberd
Format: Preprint
Published: 2003
Subjects:
Online Access:https://arxiv.org/abs/math/0305442
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Table of Contents:
  • In this paper we give an effective method for finding a unique representative of each orbit of the adjoint and coadjoint action of the real affine orthogonal group on its Lie algebra. In both cases there are orbits which have a modulus that is different from the usual invariants for orthogonal groups. We find an unexplained bijection between adjoint and coadjoint orbits. As a special case, we classify the adjoint and coadjoint orbits of the Poincaré group.