- Fintushel-Stern knot
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The three-tangle pretzel knot with two right-handed twists in its first tangle, three left-handed ones in its second, and seven left-handed ones in its third.
Wikipedia foundation.
Wikipedia foundation.
(−2,3,7) pretzel knot — Diagram of the knot In geometric topology, a branch of mathematics, the (−2, 3, 7) pretzel knot, sometimes called the Fintushel–Stern knot, is an important example of a pretzel knot which exhibits various interesting phenomena under… … Wikipedia
(-2, 3, 7) pretzel knot — In geometric topology, the ( 2, 3, 7) pretzel knot, sometimes called the Fintushel Stern knot, is an important example of a pretzel knot which exhibit various interesting phenomena under three dimensional and four dimensional surgery… … Wikipedia
Mazur manifold — In differential topology, a branch of mathematics, a Mazur manifold is a contractible, compact, smooth 4 dimensional manifold which is not diffeomorphic to the standard 4 ball. The boundary of a Mazur manifold is necessarily a homology 3 sphere.… … Wikipedia
Alexander polynomial — In mathematics, the Alexander polynomial is a knot invariant which assigns a polynomial with integer coefficients to each knot type. James Waddell Alexander II discovered this, the first knot polynomial, in 1923. In 1969, John Conway showed a… … Wikipedia
Polynôme d'Alexander — En mathématiques, et plus précisément en théorie des nœuds, le polynôme d Alexander est un invariant de nœuds qui associe un polynôme à coefficients entiers à chaque type de nœud. C est le premier polynôme de nœud (en) découvert ; il l… … Wikipédia en Français