John Leech (21 July 1926 in Weybridge, Surrey – 28 September 1992 in Scotland) was a British mathematician working in number theory, geometry and combinatorial group theory. He is best known for his discovery of the Leech lattice in 1965.
John Leech (born July 21, 1926, Weybridge, Surrey – died September 28, 1992, Scotland) was a British mathematician who made significant contributions to number theory, geometry and combinatorial group theory. He is most recognized for his discovery of the Leech lattice in 1965.