The relation between local and global dual pairs

Details The relation between local and global dual pairs The relation between local and global dual pairs

2003-10-09

arxiv.org/abs/math/0310133v2

Math. Res. Lett. 11 (2004), no. 2-3, 355--363

Mathematics

Symplectic Geometry

9 pages. To appear in Mathematical Research Letters

Scientific paper

In this note we clarify the relationship between the local and global definitions of dual pairs in Poisson geometry. It turns out that these are not equivalent. For the passage from local to global one needs a connected fiber hypothesis (this is well known), while the converse requires a dimension condition (which appears not to be known). We also provide examples illustrating the necessity of the extra conditions.

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