prof.dr. A.E. Brouwer Dept. of Math. Techn. Univ. Eindhoven P.O. Box 513 5600MB Eindhoven Netherlands email: firstname.lastname@example.org at win.tue.nl / owinfo / library / eiψ / eidma / diamant
A feeble attempt to make the files with Additions and Corrections to `Distance-Regular Graphs' by Brouwer, Cohen and Neumaier (Springer, 1989) available. The source is some troff dialect, with most formatting commands removed. One further correction (PDF). Yet another.
Info on email server (that stopped working mid 2004) with information on distance-regular graphs.
Machine-readable intersection arrays for distance-regular graphs.
Spectra of graphs, extended course notes.
A table of parameters of strongly regular graphs.
A table of parameters of directed strongly regular graphs.
A slowly growing collection of graph descriptions.
All small (0,2)-graphs. And small integral trees. And the known cages.
(For small association schemes, see the Miyamoto-Hanaki site.)
Counts on the number of cospectral graphs on at most 12 vertices.
Random stuff inspired by Ph.D. / M.Sc. theses of people nearby: Man, Erik, Tim, Ralf, Sander, Jochem ...
A small table of bounds for binary codes.
A small table of bounds for ternary codes.
Tables for mixed binary/ternary codes.
A small table of bounds for quaternary codes.
A small table of bounds for 5-ary codes.
Bounds on constant weight codes.
Apple-vs-Samsung: a description of the TFCI code used, and the judgment of the The Hague court (Dutch).
Unix port of the COCO computer algebra system for computations with permutation groups.
Eindejaars Prijsvraag 2001 | End-of-Year Contest 2001.
Eindejaars Prijsvraag 2002 | End-of-Year Contest 2002.
Remarks on how to solve Sudoku puzzles.
An applet to play a puzzle that is sometimes called Button Madness, and some numerical info. Also Lights Out! (Knuth's perfect parity patterns) with an extensive table of periods.
The 0-person game of Sandpile, or Chip Firing.
The game of Chomp. And an applet.
And a NIM applet.
Who can construct a Benjamin Franklin magic square of order 12?
Some SGF utils, such as sgftopng.
The Hikarunix Linux distribution.
ING en veiligheid.
Installation and security of ADSL and Alcatel Speed Touch ethernet modem.
The password algorithm.
How to decrypt the Dutch telephone CD-ROM, a story (Dutch) and programs (C)
John the Ripper, a password cracker.
Levenslang voor Lucia de B vanwege foutieve kansberekening.
The Pirate Bay - meer foutieve kansberekening.
Some stories about Landmark Forum.
Deens voor beginners.
Use of verbatim mode with ArabTeX. Qur'an fragment in Kufic script. Earlier Kufic.
Special symbols in the Hebrew Bible.
Urdu double-eyed he. Malay (Jawi) alphabet
The Malayalam alphabet.
The Tifinagh alphabet.
Pokorny's indoeuropean etymological dictionary.
Adams' Tocharian B dictionary.
Demiraj's Albanian inherited lexicon.
Digital versions of Brugmann's 'Grundriß'.
Petition against software patents. (The website seems to have died, but the issue is important as ever.) There is some progress.
Bits Of Freedom
Human Rights Watch
Guantánamo, not the worst of the worst, but the unluckiest of the unluckiest.
Don Knuth's Infrequently Asked Questions.
US Police State
Why it matters - If privacy disappears from the face of the Earth, mathematicians will be some of the primary culprits.
Math Reviews (MathSciNet is available by subscription only).
The Electronic Journal of Combinatorics.
Guide to Available Mathematical Software.
Computational geometry links.
SCSI standard: T10, ATA standard: T13.
Character set information: Starling. ISO 2375 Character Set Registry. Indrek Hein's database. ISO 8859-* information. Unicode. ISO online.
Languages. The Ethnologue.
Go: Go bond, ratings: NL, Eur.