knot theory


Definition of knot theory

: a branch of topology concerned with the properties and classification of mathematical knots

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Other Words from knot theory

knot theorist noun

Examples of knot theory in a Sentence

Recent Examples on the Web The new study, published last week in the journal Science, paired mathematical knot theory with a color-changing fiber developed in 2013. Theresa Machemer, Smithsonian Magazine, "The Mathematics of a Well-Tied Knot," 8 Jan. 2020 Known as invariants, these tools form the backbone not just of knot theory but of many areas of mathematics, extracting essential features of mathematical objects and detecting when two objects are fundamentally different from each other. Quanta Magazine, "In a Single Measure, Invariants Capture the Essence of Math Objects," 2 June 2020 John Conway’s boundless curiosity produced profound contributions to number theory, game theory, coding theory, group theory, knot theory, topology, probability theory, algebra, analysis, combinatorics, and more. Siobhan Roberts,, "John Horton Conway, a ‘magical genius’ in math, dies at 82," 19 Apr. 2020 In three space dimensions, knot theory is a subtle, complicated subject. Quanta Magazine, "Inside the Knotty World of ‘Anyon’ Particles," 28 Feb. 2017 The dream began in the 1860s with an ingenious knot theory of nature. Quanta Magazine, "Could Knots Unravel Mysteries of Fluid Flow?," 9 Dec. 2013 According to a press release, her master’s thesis focused on knot theory and her Ph.D. work focuses on braids and how to translate them into matrices, which are easier to understand and manipulate. Jason Daley, Smithsonian, "Watch the Winners of the 2017 Dance Your Ph.D. Competition," 3 Nov. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'knot theory.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of knot theory

1981, in the meaning defined above

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The first known use of knot theory was in 1981

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Cite this Entry

“Knot theory.” Dictionary, Merriam-Webster, Accessed 2 Dec. 2020.

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