Ph.DMathematics,University of Illinois,Urbana-Champaign, Il,1972 M.Sc.Mathematics,University of Reading,England,1967 B.Sc. (First Class Honors)Mathematics,University of Reading,England,1964
Research and Practice Interests
Discrete and Computational Geometry, Cryptography, Number Theory, Hardware Implementations, Graph Theory, Quantum Computing, Image Processing, Probabilistic Graphical Methods.
1964 B.Sc. With First Class Honors, Mathematics, University of Reading, England
1967 M.Sc., Mathematics, University of Reading, England
1972 Ph.D., Mathematics, University of Illinois Urbana-Champaign
Selected research: Recent papers in Discete & Computational Geometry:
--G. Purdy, J.W. Smith, .Lines, Circles, Planes and Spheres,. arxiv.org/0907.0724, to appear in Discrete and Computational Geometry, Springer Verlag, New York.
--G.Purdy, J.W.Smith, "Bichromatic and Equichromatic Lines in C2 and R2. Has appeared in the Journal Discrete and Computational Geometry, Springer Verlag, New York.Books and Chapters in Discrete and Computational Geometry
--Paul Erdos and G.Purdy, "Extremal Problems in Combinatorial Geometry", Chapter 17 of Handbook of Combinatorics, Vol I, pp. 809-874, Edited by R.L.Graham, M.Grotschel, L.Lovasz, , North Holland, and MIT Press, 1995. Papers in Security and Cryptography:
G. Purdy, 1974 paper in The Communications of the ACM , .A High Security Login Procedure.