Timeline for Is it difficult or easy to find non-symplectomorphic symplectic forms on a manifold?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Nov 22, 2017 at 14:50 | vote | accept | R Mary | ||
| Apr 4, 2017 at 13:57 | comment | added | Tim Perutz | "For compact manifolds, Moser's homotopy method proves that cohomologous symplectic structures are symplectomorphic". Not exactly; it proves that deformations through symplectic forms in the same cohomology class comes from symplectomorphisms. The symplectic class is not generally a complete invariant (e.g. Taubes has 4-dimensional counterexamples). | |
| Apr 4, 2017 at 11:02 | history | edited | Ben McKay | CC BY-SA 3.0 |
added case
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| Apr 4, 2017 at 10:24 | history | answered | Ben McKay | CC BY-SA 3.0 |