Some links from Leonard Soicher
Historical London Underground Maps
DesignTheory.org - combinatorial and statistical design theory
GAP - a free computer system for discrete algebra
GRAPE - a GAP package for computing with graphs and groups
DESIGN - a GAP package for generating and computing with block designs
School of Mathematical Sciences, Queen Mary University of London
Leonard Soicher's QMUL home page
[email protected]
, 22 March 2026.