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**William Bernard Raymond Lickorish** (born 19 February 1938) is a mathematician. He is emeritus professor of geometric topology in the Department of Pure Mathematics and Mathematical Statistics, University of Cambridge, and also an emeritus fellow of Pembroke College, Cambridge. His research interests include topology and knot theory. He was one of the discoverers of the HOMFLY polynomial invariant of links, and proved the Lickorish-Wallace theorem which states that all closed orientable 3-manifolds can be obtained by Dehn surgery on a link.

W. B. R. Lickorish | |
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Born | 19 February 1938 | (age 86)

Nationality | British |

Alma mater | University of Cambridge |

Known for | Topology |

Awards | Chauvenet Prize (1991) Senior Whitehead Prize (1991) |

Scientific career | |

Fields | Mathematician |

Doctoral advisor | Erik Christopher Zeeman |

Doctoral students | Marc Lackenby |

Lickorish received his Ph.D from Cambridge in 1964; his thesis was written under the supervision of Christopher Zeeman.^{[1]}

In 1991, Lickorish received the Senior Whitehead Prize from the London Mathematical Society.^{[2]} Lickorish and Kenneth Millett won the 1991 Chauvenet Prize for their paper "The New Polynomial Invariants of Knots and Links".^{[3]}
Lickorish was included in the 2019 class of fellows of the American Mathematical Society "for contributions to knot theory and low-dimensional topology".^{[4]}

- Lickorish, W. B. R. (November 1962). "A Representation of Orientable Combinatorial 3-Manifolds".
*Annals of Mathematics*.**76**(3): 531–540. doi:10.2307/1970373. JSTOR 1970373. - Freyd, Peter; Yetter, David; Hoste, Jim; Lickorish, W.B.R.; Millett, Kenneth; Ocneanu, Adrian (1985). "A New Polynomial Invariant of Knots and Links".
*Bulletin of the American Mathematical Society*.**12**(2): 239–246. doi:10.1090/S0273-0979-1985-15361-3. - Lickorish, W. B. R. (1997).
*An Introduction to Knot Theory*. Graduate Texts in Mathematics 175. Springer. ISBN 0-387-98254-X.

**^**W. B. R. Lickorish at the Mathematics Genealogy Project**^**London Mathematical Society. "List of Prizewinners". Retrieved 1 April 2015.**^**Lickorish, W. B. R.; Millett, K. C. (1988). "The New Polynomial Invariants of Knots and Links".*Mathematics Magazine*.**61**(1). Taylor & Francis: 3–23. doi:10.1080/0025570x.1988.11977338. ISSN 0025-570X.**^**"2019 Class of the Fellows of the AMS". American Mathematical Society. Retrieved 7 November 2018.