Darboux’s theorem fails for weak symplectic forms

Darboux’s theorem fails for weak symplectic forms
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by J. Marsden

Proc. Amer. Math. Soc. 32 (1972), 590-592

DOI: https://doi.org/10.1090/S0002-9939-1972-0293678-X

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An example of a weak symplectic form on a Hilbert space for which Darboux’s theorem fails is given.

References

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