Annulus Theorem
Let 
and 
be disjoint bicollared knots in 
or 
and let 
denote the open regionbetween them. Then the closure of is a closed annulus 
. Except for the case 
, the theoremwas proved by Kirby (1969).
References
Kirby, R. C. ``Stable Homeomorphisms and the Annulus Conjecture.'' Ann. Math. 89, 575-582, 1969. Rolfsen, D. Knots and Links. Wilmington, DE: Publish or Perish Press, p. 38, 1976.
- Pentadecagon
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- Pentagonal Gyrobicupola
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- Pentagonal Hexecontahedron
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- Pentagonal Number
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- Pentagonal Prism
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- Pentagonal Pyramidal Number
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