Definitions

from The Century Dictionary.

  • noun The development of an embryo into an adult organism by a series of changes which occur in the parts of the body in which they occurred in the development of its parents.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun topology A continuous deformation of one continuous function to another.
  • noun topology A theory associating a system of groups to each topological space.
  • noun topology A system of groups associated to a topological space.

Etymologies

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Examples

  • Some details must be ironed out: for example, the investigation of loops which are very similar gives no insight into the structure of the space, so we work instead with sets of loops called homotopy classes One of the most useful tools in algebraic topology is the [[fundamental group]],

    Conservapedia - Recent changes [en] JDBowen 2009

  • (humorously) a dunce cap, its fundamental group is its set of path loops that has a useful characteristic known as "[[homotopy]]"

    Conservapedia - Recent changes [en] 2009

  • However, I find to stomach arguments that other completely useless things – like calculating the QCD beta function to n loops, or calculating the homotopy groups of spheres is somehow more worthy.

    What is String Theory Good For (Part I)? « Imaginary Potential 2008

  • However, I find to stomach arguments that other completely useless things – like calculating the QCD beta function to n loops, or calculating the homotopy groups of spheres is somehow more worthy.

    September « 2008 « Imaginary Potential 2008

  • So I presume that the cyclic group, or homotopy on the 3-sphere persists for N-large or for classical recovery.

    Matter v Antimatter II: Electroweak Baryogenesis Mark 2008

  • On the typical serious math paper, say, noncommutative loops over Lie algebra, or real homotopy theory of Kaehler manifolds, or compactification on Calabi-Yau manifolds, my head just starts to spin.

    The Cult of Genius Julianne 2007

  • I believe that any confusion here originates from the use of homotopy in knot theory where an ignorance of the space in which the knot is embedded would result in every knot being equivalent to the trivial knot.

    Boing Boing: July 25, 2004 - July 31, 2004 Archives 2004

  • Welcome to the wonderful world of homotopy equivalence classes.

    Boing Boing: July 25, 2004 - July 31, 2004 Archives 2004

  • See: on homotopy, where the space Y is in fact euclidean 3-space.

    Boing Boing: July 25, 2004 - July 31, 2004 Archives 2004

  • This book will be of interest to both topologists and algebraists, particularly those concerned with homotopy theory.

    AvaxHome RSS: 2010

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