Matroids
Software, Coxeter Matroids, Coxeter Matroids, Matroid Miscellany, Matroid Theory, Matroids and Signed Graphs, Matroids and Signed Graphs
Bill Cherowitzo's Hyperoval Page
Hyperovals in Desarguesian Planes and related structures in arbitrary projective planes.
Blocks and Design Applet
Fractional factorial design generator by Marko Boon.
Caps in Finite Geometries
Tables and examples in PG(k-1,q) by Yves Edel.
D.H. Rees Home Page
Information on Nested and Orthogonal BIBDs and related topics.
Design and Analysis of Experiments
Construction and analysis of comparative experiments at the Horticultural Research Institute.
Design Resources
Links to resources for design theory maintained by Peter Cameron.
Design Theory Lecture notes on the Web
Links compiled by Peter Cameron.
Design Theory Resource Server
A research project founded by the UK Engineering and Physical Sciences Research Council.
Distributed.net: Project OGR
Describes the computerized effort to prove that the known shortest Golomb rulers (up to 25 marks) are really the shortest, or else find the actual shortest ones.
Golomb Rulers
Table of lengths of shortest known Golomb rulers, counts of optimal and near-optimal rulers, and some Fortran programs for dealing with Golomb rulers.
Golomb Rulers - The Search For 20, 21 and 22!
The search for optimal Golomb Rulers with 20, 21 and 22 marks.
Hadamard Matrices
A library of Hadamard matrices maintained by N. J. A. Sloane.
Handbook of Combinatorial Designs
Home page for The CRC Handbook of Combinatorial Designs.
La Jolla Covering Repository
A database of good covering designs constructed by Dan Gordon.
Library of D-optimal Designs
Compiled by Jennifer Seberry.
Mathematical Association of America - Math Games:
Ed Pegg Jr. writes about the history (and future) of Golomb rulers and related concepts.
Mathworld - Golomb Ruler
Description and theory, with references to additional reading.
Modular and Regular Golomb Rulers
Detailed, theoretical tutorial with references.
Orthogonal Arrays
A library of over 200 orthogonal arrays maintained by N. J. A. Sloane.
Orthogonal Arrays and Covering Arrays
Construction of orthogonal arrays and covering arrays using permutation groups by George Sherwood.
Projective Planes of Small Order
Lists of known projective planes of small order compiled by Eric Moorhouse.
Small Association Schemes
Tables of homogeneous coherent configurations by A. Hanaki and I. Miyamoto.
SOMA Update
Leonard Soicher reports on new SOMAs, which are generalisations of mutually orthogonal latin squares.
Some Constant Weight Codes
As orbits of AG(2,q), PSL(2,2^f) and PGammaL(2,2^f) by Yves Edel.
StatLib - Designs Archive
With programs and algorithms for creating designs for statistical experiments.
Ted Spence's Home Page
Classification of Hadamard matrices and designs.
The Hadamard Maximal Determinant Problem
List of known {-1,1}-matrices with largest determinant and D-optimal designs.
The Witt Design
The Steiner system S(5,8,24) explicitly computed by Ashay Dharwadker.