Большой англо-русский и русско-английский словарь. 2001.
unknotted — adjective Not knotted. He wore an unknotted tie … Wiktionary
unknotted — v. untie a knot, loosen a knot, unfasten a string or rope that has been tied … English contemporary dictionary
unknotted — … Useful english dictionary
Knot theory — A three dimensional depiction of a thickened trefoil knot, the simplest non trivial knot … Wikipedia
Kirby calculus — In mathematics, the Kirby calculus in geometric topology is a method for modifying framed links in the 3 sphere using a finite set of moves, the Kirby moves. It is named for Robion Kirby. Using four dimensional Cerf theory, he proved that if M… … Wikipedia
Whitehead manifold — In mathematics, the Whitehead manifold is an open 3 manifold that is contractible, but not homeomorphic to R3. Henry Whitehead discovered this puzzling object while he was trying to prove the Poincaré conjecture.A contractible manifold is one… … Wikipedia
Satellite knot — In the mathematical theory of knots, a satellite knot is a knot which contains an incompressible, non boundary parallel torus in its complement [Colin Adams, The Knot Book: An Elementary Introduction to the Mathematical Theory of Knots , (2001),… … Wikipedia
Homotopy — This article is about topology. For chemistry, see Homotopic groups. The two dashed paths shown above are homotopic relative to their endpoints. The animation represents one possible homotopy. In topology, two continuous functions from one… … Wikipedia
Wolfgang Haken — (born June 21, 1928) is a mathematician who specializes in topology, in particular 3 manifolds. In 1976 together with colleague Kenneth Appel at the University of Illinois at Urbana Champaign, Haken solved one of the most famous problems in… … Wikipedia
Contact geometry — Contact form redirects here. For a web email form, see Form (web)#Form to email scripts. The standard contact structure on R3. Each point in R3 has a plane associated to it by the contact structure, in this case as the kernel of the one form dz − … Wikipedia
Mattress — For other uses, see Mattress (disambiguation). A pillow top queen size mattress. A mattress is a manufactured product to sleep or lie on, consisting of resilient materials and covered with an outer fabric or ticking. In the developed world it is… … Wikipedia
