• Thumbnail for Hopf link
    mathematical knot theory, the Hopf link is the simplest nontrivial link with more than one component. It consists of two circles linked together exactly once...
    9 KB (892 words) - 16:20, 15 November 2022
  • Thumbnail for Hopf fibration
    In differential topology, the Hopf fibration (also known as the Hopf bundle or Hopf map) describes a 3-sphere (a hypersphere in four-dimensional space)...
    36 KB (4,799 words) - 18:21, 21 August 2024
  • Thumbnail for Link (knot theory)
    nontrivial example of a link with more than one component is called the Hopf link, which consists of two circles (or unknots) linked together once. The circles...
    8 KB (1,107 words) - 01:03, 25 April 2024
  • Thumbnail for Knot theory
    Knot theory (redirect from Link diagram)
    gives the unknot and the Hopf link. Applying the relation to the Hopf link where indicated, C() = C() + z C() gives a link deformable to one with 0 crossings...
    49 KB (6,295 words) - 22:27, 12 July 2024
  • Thumbnail for Heinz Hopf
    Heinz Hopf (19 November 1894 – 3 June 1971) was a German mathematician who worked on the fields of dynamical systems, topology and geometry. Hopf was born...
    11 KB (970 words) - 05:12, 25 July 2024
  • crossings (the Hopf link [1]). Patching the trefoil P() = A × P() + P() gives the unknot and, again, the Hopf link. Patching the Hopf link P() = A × P()...
    8 KB (931 words) - 20:32, 11 February 2024
  • Hopf is a German surname. Notable people with the surname include: Eberhard Hopf (1902–1983), Austrian mathematician Hans Hopf (1916–1993), German tenor...
    447 bytes (91 words) - 21:59, 31 January 2021
  • Thumbnail for Hopf bifurcation
    In the mathematical theory of bifurcations, a Hopf bifurcation is a critical point where, as a parameter changes, a system's stability switches and a periodic...
    21 KB (3,707 words) - 03:37, 8 April 2024
  • Thumbnail for Poincaré–Hopf theorem
    mathematics, the Poincaré–Hopf theorem (also known as the Poincaré–Hopf index formula, Poincaré–Hopf index theorem, or Hopf index theorem) is an important...
    6 KB (867 words) - 12:53, 31 January 2024
  • Thumbnail for Fibered knot
    Fibered knot (redirect from Fibered link)
    trefoil knot, and figure-eight knot are fibered knots. The Hopf link is a fibered link. The Alexander polynomial of a fibered knot is monic, i.e. the...
    4 KB (419 words) - 20:04, 27 August 2022
  • Thumbnail for Pair of pants (mathematics)
    This link cobordism between the Hopf link and the unlink is topologically a pair of pants....
    12 KB (1,711 words) - 11:54, 3 December 2023
  • Thumbnail for Linking number
    Differentiable curve – Study of curves from a differential point of view Hopf invariant – Homotopy invariant of maps between n-spheres Kissing number –...
    16 KB (2,527 words) - 16:29, 10 June 2024
  • Thumbnail for Unlink
    Unlink (redirect from Trivial Link)
    unknot. The link group of an n-component unlink is the free group on n generators, and is used in classifying Brunnian links. The Hopf link is a simple...
    3 KB (238 words) - 00:19, 26 March 2024
  • integers, and the link group of an unlinked union is the free product of the link groups of the components. The link group of the Hopf link, the simplest...
    8 KB (1,236 words) - 19:46, 18 December 2023
  • Thumbnail for Seifert surface
    whose boundary is a given knot or link. Such surfaces can be used to study the properties of the associated knot or link. For example, many knot invariants...
    10 KB (1,358 words) - 07:56, 18 July 2024
  • Thumbnail for Solomon's knot
    Solomon's knot (redirect from Solomon link)
    and over each other. This contrasts with two crossings in the simpler Hopf link. In most artistic representations, the parts of the loops that alternately...
    11 KB (1,332 words) - 06:52, 21 August 2024
  • the Hopf invariant is a homotopy invariant of certain maps between n-spheres. In 1931 Heinz Hopf used Clifford parallels to construct the Hopf map η...
    8 KB (1,542 words) - 18:31, 5 May 2024
  • Thumbnail for 16-cell
    each other, nest into each other and pass through each other forming a Hopf link. The 16 triangle faces can be seen in a 2D net within a triangular tiling...
    60 KB (7,175 words) - 03:39, 24 July 2024
  • Thumbnail for 24-cell
    are also linked, not in a Möbius loop but as a Hopf link of two non-intersecting circles, as are all the Clifford parallel isoclines of a Hopf fiber bundle...
    237 KB (31,111 words) - 03:39, 24 July 2024
  • Karl Hopf may refer to: Karl Hopf (historian) Karl Hopf (serial killer) This disambiguation page lists articles about people with the same name. If an...
    111 bytes (44 words) - 17:28, 21 February 2021
  • Thumbnail for Whitehead link
    theory, the Whitehead link, named for J. H. C. Whitehead, is one of the most basic links. It can be drawn as an alternating link with five crossings, from...
    6 KB (651 words) - 18:56, 26 December 2021
  • no such continuous motion, the two curves are said to be linked. For example, the Hopf link is formed by two circles that each pass through the disk spanned...
    29 KB (3,469 words) - 20:06, 19 February 2024
  • Thumbnail for 600-cell
    are also linked, not in a Möbius loop but as a Hopf link of two non-intersecting circles, as are all the Clifford parallel isoclines of a Hopf fiber bundle...
    217 KB (28,934 words) - 10:59, 1 August 2024
  • Thumbnail for Rössler attractor
    knot theory. The periodic orbits with winding numbers 1 and 2 form a Hopf link, showing that no diffeomorphism can separate these orbits. The banding...
    24 KB (3,602 words) - 23:23, 3 August 2024
  • knot K ′ {\displaystyle K'} with a Hopf link. If the link K ′ ∪ J {\displaystyle K'\cup J} is the Whitehead link, K {\displaystyle K} is called a Whitehead...
    8 KB (1,182 words) - 17:32, 6 August 2024
  • Thumbnail for Borromean rings
    simple closed curves in three-dimensional space that are topologically linked and cannot be separated from each other, but that break apart into two unknotted...
    43 KB (4,472 words) - 10:49, 27 August 2024
  • Thumbnail for Prime knot
    Prime knot (redirect from Composite link)
    In knot theory, a prime knot or prime link is a knot that is, in a certain sense, indecomposable. Specifically, it is a non-trivial knot which cannot be...
    3 KB (271 words) - 16:54, 20 August 2024
  • Thumbnail for List of mathematical knots and links
    1 link/Unlink - equivalent under ambient isotopy to finitely many disjoint circles in the plane 22 1 link/Hopf link - the simplest nontrivial link with...
    3 KB (421 words) - 23:35, 12 September 2023
  • Thumbnail for Knot complement
    is needed to determine the usage. There are analogous definitions for the link complement. Many knot invariants, such as the knot group, are really invariants...
    3 KB (275 words) - 00:23, 24 October 2023
  • simplest Brunnian link Brunnian link, a set of links which become trivial if one loop is removed Hopf link, the simplest non-trivial link Solomon's knot...
    7 KB (788 words) - 23:17, 22 May 2024