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- From: klein@math205.mathematik.uni-bielefeld.de (john klein)
- Newsgroups: sci.math.research
- Subject: Re: Union of locally flat cells.
- Message-ID: <1992Aug28.140124.27749@unibi.uni-bielefeld.de>
- Date: 28 Aug 92 14:01:24 GMT
- References: <BtowMx.M9p@fuhainf.fernuni-hagen.de>
- Sender: Daniel Grayson <dan@math.uiuc.edu>
- Organization: Universitaet Bielefeld
- Lines: 21
- Approved: Daniel Grayson <dan@math.uiuc.edu>
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- In article <BtowMx.M9p@fuhainf.fernuni-hagen.de> le@tinosfernuni-hagen.de
- writes:
- >
- > 1. Can anyone give information about the current status
- > of the "annulus conjecture" ?
- > Rushing stated in his book "Topological Embeddings, AP 1973"
- > that "it is still unknown for n=4".
- >
- > 2. Is the \beta-statement \beta(n,n-1,n-1,n-2) true for n=3 ?
- > If not, under what additional conditions it it true ?
- > Rushing states in his book that it is true for n > 3.
- >
- > Any suggestions, hints are welcome.
- >
- > Thanks in advance.
-
- I believe that Quinn proved the 4-dimensional annulus conjecture.
- The paper was published in the Journal of Differential Geometry
- (1984?). The precise reference is in the Freedman-Quinn book
- "Topology of 4-manifolds" (Princeton , 1991)
- Andrew Ranicki
-