科研之友
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摘要
We introduce a new operation, double point surgery, on immersed surfaces in a 4-manifold, and use it to construct knotted configurations of surfaces in many 4-manifolds. Taking branched covers, we produce smoothly exotic actions of Z(m) circle plus Z(n) on simply connected 4-manifolds with complicated fixed-point sets.
- 出版日期2011
