|the version used for publication as of 12:18, 16 May 2013 and the changes since publication.|
When is described as a handlebody, and is represented by a -handle attached along an unknotted circle with zero framing, then the handlebody of is obtained from the handlebody of by putting one full right (or left) twist to all of the attaching framed circles of the other -handles going through this circle.
3 Some Results
It is known that is diffeomorphic to , when is a copy of with either orientation. When is null-homologous and is simply connected this operation does not change the homeomorphism type of . It is not known whether a Gluck twisting operation can change the diffeomorphism type of any smooth orientable manifold, while it is known that this is possible in the nonorientable case ([A1]). In many instances Gluck twisting of manifolds appear naturally, where this operation do not change their diffeomorphism types (e.g. [G], [A2], [A3], [AY]).