- trefoil knot
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trefoil knot
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Trefoil knot — In knot theory, the trefoil knot is the simplest nontrivial knot. It can be obtained by joining the loose ends of an overhand knot. It can be described as a (2,3) torus knot, and is the closure of the 2 stranded braid σ1³. It is also the… … Wikipedia
Trefoil knot fold — The trefoil knot fold is a protein fold in which the protein backbone is twisted into a trefoil knot shape. Shallow knots in which the tail of the polypeptide chain only passes through a loop by a few residues are uncommon, but deep knots in… … Wikipedia
trefoil knot — a knot having the form of a trefoil. * * * … Universalium
trefoil knot — a knot having the form of a trefoil … Useful english dictionary
Trefoil (disambiguation) — Trefoil is a graphic form composed of three lobes.Trefoil may also be: * Trefoil Island, Tasmania, Australia * Little Trefoil Island, Tasmania, Australia * Trefoil knot, a concept in knot theory * Clover * Certain species in Lotus (genus) * A… … Wikipedia
Trefoil — (from Latin trifolium , three leaved plant , French trèfle , German Dreiblatt and Dreiblattbogen ) is a graphic form composed of the outline of three overlapping rings used in architecture and Christian symbolism. The term is also applied to… … Wikipedia
Knot theory — A three dimensional depiction of a thickened trefoil knot, the simplest non trivial knot … Wikipedia
Knot (mathematics) — A table of all prime knots with seven crossings or fewer (not including mirror images). In mathematics, a knot is an embedding of a circle in 3 dimensional Euclidean space, R3, considered up to continuous deformations (isotopies). A crucial… … Wikipedia
Knot — For speeds, see Knot (unit). For other uses, see Knot (disambiguation). Some knots 1 Yarn knot ABoK #2688 2 Manrope knot 3 Granny knot 4 Rosebud stopper knot(?) … Wikipedia
Knot group — In mathematics, a knot is an embedding of a circle into 3 dimensional Euclidean space. The knot group of a knot K is defined as the fundamental group of the knot complement of K in R3,:pi 1(mathbb{R}^3 ackslash K).Two equivalent knots have… … Wikipedia
