Sergey Kitaev

Sergey Kitaev (Russian: Сергей Владимирович Китаев; born 1 January 1975 in Ulan-Ude) is a Professor of Mathematics at the University of Strathclyde, Glasgow, Scotland. He obtained his Ph.D. in mathematics from the University of Gothenburg in 2003 under the supervision of Einar Steingrímsson. Kitaev's research interests concern aspects of combinatorics and graph theory.

Contributions
Kitaev is best known for his book Patterns in permutations and words (2011), an introduction to the field of permutation patterns. He is also the author (with Vadim Lozin) of Words and graphs (2015) on the theory of word-representable graphs which he pioneered.

Kitaev has written over 120 research articles in mathematics. Of particular note is his work generalizing vincular patterns to having partially ordered entries, a classification (with Anders Claesson) of bijections between 321- and 132-avoiding permutations, and a solution (with Steve Seif) of the word problem for the Perkins semigroup, as well as his work on word-representable graphs.