In mathematics, the Property P conjecture is a statement about 3-manifolds obtained by Dehn surgery on a knot in the 3-sphere. A knot in the 3-sphere is said to have Property P if every 3-manifold obtained by performing (non-trivial) Dehn surgery on the knot is not simply-connected. The conjecture states that all knots, except the unknot, have Property P. Research on Property P was started by R. H. Bing, who popularized the name and conjecture. A proof was announced in 2004, as the combined result of efforts of mathematicians working in several different fields.
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| - Eigenschaft P (de)
- Property P conjecture (en)
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| - Eigenschaft P ist eine Eigenschaft von Knoten, die gemäß der 2004 von Peter Kronheimer und Tomasz Mrowka bewiesenen Property P conjecture allen nichttrivialen Knoten zukommt und die besagt, dass 1-Chirurgie am Knoten niemals eine ergibt. Diese Vermutung war von Bedeutung in der Entwicklung der 3-dimensionalen Topologie, insbesondere im Zusammenhang mit der Poincaré-Vermutung. (de)
- In mathematics, the Property P conjecture is a statement about 3-manifolds obtained by Dehn surgery on a knot in the 3-sphere. A knot in the 3-sphere is said to have Property P if every 3-manifold obtained by performing (non-trivial) Dehn surgery on the knot is not simply-connected. The conjecture states that all knots, except the unknot, have Property P. Research on Property P was started by R. H. Bing, who popularized the name and conjecture. A proof was announced in 2004, as the combined result of efforts of mathematicians working in several different fields. (en)
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| - Eigenschaft P ist eine Eigenschaft von Knoten, die gemäß der 2004 von Peter Kronheimer und Tomasz Mrowka bewiesenen Property P conjecture allen nichttrivialen Knoten zukommt und die besagt, dass 1-Chirurgie am Knoten niemals eine ergibt. Diese Vermutung war von Bedeutung in der Entwicklung der 3-dimensionalen Topologie, insbesondere im Zusammenhang mit der Poincaré-Vermutung. (de)
- In mathematics, the Property P conjecture is a statement about 3-manifolds obtained by Dehn surgery on a knot in the 3-sphere. A knot in the 3-sphere is said to have Property P if every 3-manifold obtained by performing (non-trivial) Dehn surgery on the knot is not simply-connected. The conjecture states that all knots, except the unknot, have Property P. Research on Property P was started by R. H. Bing, who popularized the name and conjecture. This conjecture can be thought of as a first step to resolving the Poincaré conjecture, since the Lickorish–Wallace theorem says any closed, orientable 3-manifold results from Dehn surgery on a link.If a knot has Property P, then one cannot construct a counterexample to the Poincaré conjecture by surgery along . A proof was announced in 2004, as the combined result of efforts of mathematicians working in several different fields. (en)
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