Annals of Global Analysis and Geometry

, Volume 37, Issue 4, pp 379–391 | Cite as

Extrinsically immersed symplectic symmetric spaces

  • Tom Krantz
  • Lorenz J. SchwachhöferEmail author


Let (V, Ω) be a symplectic vector space and let \({\phi : M \rightarrow V}\) be a symplectic immersion. We show that \({\phi(M) \subset V}\) is locally an extrinsic symplectic symmetric space (e.s.s.s.) in the sense of Cahen et al. (J Geom Phys 59(4):409f́b-425, 2009) if and only if the second fundamental form of \({\phi}\) is parallel. Furthermore, we show that any symmetric space, which admits an immersion as an e.s.s.s., also admits a full such immersion, i.e., such that \({\phi(M)}\) is not contained in a proper affine subspace of V, and this immersion is unique up to affine equivalence. Moreover, we show that any extrinsic symplectic immersion of M factors through to the full one by a symplectic reduction of the ambient space. In particular, this shows that the full immersion is characterized by having an ambient space V of minimal dimension.


Extrinsic symmetric spaces Symplectic immersions 


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.Fakultät für MathematikTechnische Universität DortmundDortmundGermany

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