||Journal of Gökova Geometry Topology, Volume 2 (2008)|
||Corks, Plugs and exotic structures|
||Selman Akbulut and Kouichi Yasui|
We discuss corks, and introduce new objects which we call plugs. Though
plugs are fundamentally different objects, they also detect exotic smooth structures
in 4-manifolds like corks. We discuss relation between corks, plugs and rational blow-downs. We show how to detect corks and plugs inside of some exotic manifolds.
Furthermore, we construct knotted corks and plugs.
||4-manifold, handlebody, Stein manifold, rational blow-down, h-cobordism|
|Submitted: ||June 26, 2008|
|Accepted: ||July 29, 2008|
2008 Journal main page|
Last updated: December 2008
Web address: GokovaGT.org/journal/2008