Posted by haifeng on 2012-01-06 18:57:07 last update 2012-01-06 18:57:07 | Answers (0) | 收藏
Thurston 给出了一个 4 维的例子.
References:
A. Weinstein, Lectures on symplectic manifolds, C.B.M.S. regional conference series, 29, A.M.S. Rhode Island, 1977.
