Dror Bar-Natan

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Dror Bar-Natan
Dror Bar-Natan.jpg
Dror Bar-Natan, Berkeley, 1999
(photo by George Bergman)
Born (1966-01-30) January 30, 1966 (age 51)
Nationality Israeli, U.S., Canadian
Fields Mathematics
Institutions University of Toronto
Alma mater Princeton University
Doctoral advisor Edward Witten
Doctoral students Hernando Burgos Soto

Dror Bar-Natan (Hebrew: דרוֹר בָר-נָתָן‎‎; born January 30, 1966) is a Professor at the University of Toronto Department of Mathematics, Canada. His main research interests include knot theory, finite type invariants, and Khovanov homology.


Bar-Natan earned his B.Sc. in mathematics at Tel Aviv University in 1984. After performing his military service as a teacher, he went to study at Princeton University in 1987. He obtained his Ph.D. in mathematics from Princeton in 1991, under the direction of physicist Edward Witten.[1]


After holding a Benjamin Peirce Assistant Professorship at Harvard University for four years from 1991–95, he returned to Israel, and became Associate Professor at the Hebrew University of Jerusalem. He moved to the University of Toronto in 2002, and was promoted to Full Professor in 2006.[2]

Personal life[edit]

Bar-Natan holds US, Israeli, and Canadian citizenship, and currently resides in Canada. Originally refusing to take the Canadian citizenship oath because it would require him to swear allegiance to royalty,[3] Bar-Natan later decided to become a citizen but publicly announced his intention to renounce the oath immediately after becoming a citizen.[4] He is married to mathematician Yael Karshon and is the father of two sons, Assaf and Itai.[2]


In 1999, Bar-Natan collaborated on a paper with the goal of mathematically refuting claims made in The Bible Code by Michael Drosnin that hidden messages could be deciphered from within the bible. In particular, he demonstrated that practically any "code" could be found within the Bible, thereby debunking Drosnin's "discovery" of specific codes. This work is outside the main scope of his academic interests, although he is known for it because of the popularity of The Bible Code.[5]

Academically, Bar-Natan has made significant contributions to the formalization of Khovanov homology.

Bar-Natan is a member of the Editorial Board for the journal Compositio Mathematica.[6]

Selected Publication[edit]

  • Bar-Natan, D (1996) On the Vassiliev knot invariants, Topology, Volume 34, Issue 2, April 1995, pages 423-472


  1. ^ Dror Bar-Natan, Mathematics Genealogy Project. Accessed December 20, 2010
  2. ^ a b Dror Bar-Natan — Curriculum Vitae
  3. ^ Perkel, Colin (12 July 2013). "Canadian citizenship oath to Queen will be challenged in court". Toronto Star. Retrieved 8 April 2014. 
  4. ^ "New Canadian to renounce oath of allegiance to Queen Elizabeth". CBC News. 30 November 2015. Retrieved 30 November 2015. 
  5. ^ Bar-Natan, D with Brendan McKay, Gil Kalai and Maya Bar-Hillel; Statistical Science 14-2 (1999) 150-173)
  6. ^ Editorial Board, Compositio Mathematica. Accessed December 20, 2010

External links[edit]