• Thumbnail for Surface (topology)
    In the part of mathematics referred to as topology, a surface is a two-dimensional manifold. Some surfaces arise as the boundaries of three-dimensional...
    32 KB (4,171 words) - 04:39, 1 March 2025
  • Thumbnail for Topology
    Topology (from the Greek words τόπος, 'place, location', and λόγος, 'study') is the branch of mathematics concerned with the properties of a geometric...
    39 KB (4,392 words) - 05:28, 28 July 2025
  • study of topology. In 1827, Carl Friedrich Gauss published General investigations of curved surfaces, which in section 3 defines the curved surface in a similar...
    27 KB (3,839 words) - 21:04, 18 July 2025
  • Thumbnail for Genus (mathematics)
    number of "holes" of a surface. A sphere has genus 0, while a torus has genus 1. The genus of a connected, orientable surface is an integer representing...
    10 KB (1,412 words) - 15:03, 2 May 2025
  • Thumbnail for Differential topology
    differential topology is the field dealing with the topological properties and smooth properties of smooth manifolds. In this sense differential topology is distinct...
    15 KB (1,837 words) - 17:30, 2 May 2025
  • Thumbnail for Surface (mathematics)
    geometry, a surface may cross itself (and may have other singularities), while, in topology and differential geometry, it may not. A surface is a topological...
    22 KB (3,974 words) - 23:13, 14 July 2025
  • Thumbnail for Boundary (topology)
    In topology and mathematics in general, the boundary of a subset S of a topological space X is the set of points in the closure of S not belonging to the...
    21 KB (3,803 words) - 22:29, 23 May 2025
  • Thumbnail for Torus
    Torus (redirect from Doughnut topology)
    Clifford torus, a surface in 4-space. In the field of topology, a torus is any topological space that is homeomorphic to a torus. The surface of a coffee cup...
    40 KB (5,169 words) - 00:34, 2 August 2025
  • by having a low grooving surface. Besides friction, low grooving surfaces depend on the topology (surface) factors of surface texture (lay) and spacing...
    19 KB (1,947 words) - 18:48, 22 May 2025
  • Jost, (1997) "Compact Riemann Surfaces: An Introduction to Contemporary Mathematics", Springer James R. Munkres, Topology, Second Edition, Prentice-Hall...
    7 KB (684 words) - 02:15, 17 March 2025
  • Thumbnail for Orientability
    some topological spaces such as real vector spaces, Euclidean spaces, surfaces, and more generally manifolds that allows a consistent definition of "clockwise"...
    26 KB (4,017 words) - 21:23, 9 July 2025
  • manifold Surface (topology), a two-dimensional manifold Algebraic surface, an algebraic variety of dimension two Coordinate surfaces Fractal surface, generated...
    3 KB (381 words) - 17:01, 26 November 2024
  • In mathematics, and more precisely in topology, the mapping class group of a surface, sometimes called the modular group or Teichmüller modular group,...
    31 KB (4,595 words) - 03:39, 1 November 2023
  • Thumbnail for Geometric topology
    geometric topology is the study of manifolds and maps between them, particularly embeddings of one manifold into another. Geometric topology as an area...
    13 KB (1,751 words) - 13:17, 15 September 2024
  • Computer Atlas of Surface Topography of Proteins (CASTp) aims to provide comprehensive and detailed quantitative characterization of topographic features...
    12 KB (1,472 words) - 20:28, 14 October 2024
  • Thumbnail for Triangulation (topology)
    of triangulations established a new branch in topology, namely piecewise linear topology (or PL topology). Its main purpose is to study the topological...
    33 KB (5,150 words) - 17:34, 13 June 2025
  • This is a list of geometric topology topics. Knot (mathematics) Link (knot theory) Wild knots Examples of knots (and links) Unknot Trefoil knot Figure-eight...
    3 KB (266 words) - 19:43, 7 April 2025
  • Thumbnail for Electrode
    for some commonly used materials are listed in the table below. The surface topology of the electrode plays an important role in determining the efficiency...
    43 KB (5,186 words) - 19:45, 22 May 2025
  • José da Costa. It is also a surface of finite topology, which means that it can be formed by puncturing a compact surface. Topologically, it is a thrice-punctured...
    3 KB (227 words) - 17:48, 11 January 2025
  • Thumbnail for Möbius strip
    Möbius strip (category Topology)
    minimal surface with the topology of the Möbius strip, can be constructed using solutions to the Björling problem, which defines a minimal surface uniquely...
    88 KB (9,639 words) - 16:17, 5 July 2025
  • Thumbnail for Pair of pants (mathematics)
    "A presentation for the mapping class group of a closed orientable surface". Topology. 19 (3): 221–237. doi:10.1016/0040-9383(80)90009-9. Imayoshi, Yôichi;...
    12 KB (1,711 words) - 00:30, 13 June 2025
  • Thumbnail for Rashba–Edelstein effect
    topological insulators, spin-split surface states exist independently from the Rashba effect, due to the surface topology. Topological insulators display...
    25 KB (2,878 words) - 14:09, 6 July 2025
  • Thumbnail for Low-dimensional topology
    In mathematics, low-dimensional topology is the branch of topology that studies manifolds, or more generally topological spaces, of four or fewer dimensions...
    19 KB (2,362 words) - 19:25, 14 June 2025
  • using methods from computable topology. A large family of algorithms concerning 3-manifolds revolve around normal surface theory, which is a phrase that...
    14 KB (1,567 words) - 07:11, 21 July 2025
  • digital topology are used to specify and justify important (low-level) image analysis algorithms, including algorithms for thinning, border or surface tracing...
    7 KB (939 words) - 15:10, 27 April 2025
  • Thumbnail for Lamination (topology)
    In topology, a branch of mathematics, a lamination is a : "topological space partitioned into subsets" decoration (a structure or property at a point)...
    3 KB (315 words) - 19:41, 7 March 2025
  • Riemann–Hurwitz formula (category Algebraic topology)
    characteristics of two surfaces when one is a ramified covering of the other. It therefore connects ramification with algebraic topology, in this case. It...
    7 KB (1,100 words) - 01:47, 18 April 2025
  • often called a surface bundle over the circle. Mapping torus Salter, Nick; Tshishiku, Bena (21 October 2019). "Surface bundles in topology, algebraic geometry...
    839 bytes (68 words) - 16:44, 21 July 2025
  • Thumbnail for Shape of the universe
    primarily by its curvature, while the global geometry is characterised by its topology (which itself is constrained by curvature). General relativity explains...
    32 KB (3,679 words) - 17:31, 28 May 2025
  • In topology, the closure of a subset S of points in a topological space consists of all points in S together with all limit points of S. The closure of...
    26 KB (4,287 words) - 09:15, 20 December 2024