Examples of circle actions on symplectic spaces
Examples of circle actions on symplectic spaces
Many interesting results in the study of symplectic torus actions can be proved by purely cohomological methods.All one needs is a closed orientable topological 2nmanifold M (or, more generally, a reasonably pleasant topological space whose rational cohomology satisfies Poincaré duality with formal dimension 2n), which is cohomologically symplectic (c-symplectic) in …