If you were plowing a field, which would you rather use? Two strong oxen or 1024 chickens?
by Seymour Cray (1925-1996), father of supercomputing

Poisson Book

The first chapters of this book, written with Jean-Paul Dufour and published by Birkhauser in 2005, may serve as an introduction to Poisson geometry for interested people.

As regards normal forms, there are a number of interesting results which appeared in the literature after the publication of the book. In particular:

* The results by Cranic, Fernandes, Marcut, … (In particular, Crainic has a nice geometric proof of my local linearization theorem for proper Lie groupoids)

* The results by Stolovitch, Lorhmann, … (analytic/Gevrey local normal forms)

Comments welcome (especially about new developments)

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