Richard A. Parker (29 January 1953 – 26 January 2024^[1]) was a mathematician and freelance computer programmer born inSurrey who lived for much of his life inCambridge,England. He invented many of the algorithms for computing the modular character tables of finitesimple groups. He discovered the relation betweenNiemeier lattices anddeep holes of theLeech lattice, and constructed Parker'sMoufang loop of order 2^13[2] (which was used byJohn Horton Conway in his construction of themonster group).

• Conway, J. H.;Sloane, N. J. A. (1999).Sphere packings, lattices and groups. (3rd ed.) With additional contributions by E. Bannai,R. E. Borcherds,John Leech,Simon P. Norton,A. M. Odlyzko, R. A. Parker, L. Queen and B. B. Venkov. Grundlehren der Mathematischen Wissenschaften, 290. New York: Springer-Verlag.ISBN 0-387-98585-9.
• Conway, John Horton; Curtis, Robert Turner;Norton, Simon Phillips;Parker, Richard A;Wilson, Robert Arnott (1985).Atlas of finite groups: maximal subgroups and ordinary characters for simple groups. Oxford University Press.ISBN 0-19-853199-0.
• An Atlas of Brauer Characters (London Mathematical Society Monographs) by Christopher Jansen, Klaus Lux, Richard Parker, Robert Wilson. Oxford University Press, U.S. (October 1, 1995)ISBN 0-19-851481-6

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