Welsh, 29 August 1938 – 30 November 2023)[1][2][3] was an English mathematician and emeritus professor of Oxford University's Mathematical Institute.
Welsh obtained his Doctor of Philosophy from Oxford University under the supervision of John Hammersley.
[5] After working as a researcher at Bell Laboratories, he joined the Mathematical Institute in 1963 and became a fellow of Merton College, Oxford in 1966.
[6] Welsh received an honorary doctorate from the University of Waterloo in 2006.
[3] In 2007, Oxford University press published Combinatorics, Complexity, and Chance: A Tribute to Dominic Welsh, an edited volume of research papers dedicated to Welsh.