Eindhoven Discrete Math Seminar

Time, Place and Intent Planned Lectures Tentative Lectures Lectures given in 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001

Lectures given in 2002 January 16 Andries Brouwer January 23 Jan Draisma. CART Ulrich Kortenkamp, New developments in Cinderella January 30 Scott Murray. Computing in groups of Lie type February 6 Martijn Stam. HEX without a trace February 20 Peter Beelen. Baker's theorem from the function field point of view February 27 Hans Cuypers. Ideals in the integral octaves Erik Postma. Fon-der-Flaass graphs March 6 Arjeh M. Cohen. Pure Artin groups of spherical type Problem session: show that the following game always ends. Suppose n players are sitting at a round table. Precisely n-1 cards are divided amongst them at random. They start acting (playing?) in rounds until each player has at most one card. At each round each player who has more than one card hands one card to each of his/her neighbors. March 27 Henny Wilbrink Circulant complex Hadamard matrices Edwin van Dam, Strongly regular decompositions of the complete graph April 10 Dié Gijsbers, Brauer and BMW algebras Ruud Pellikaan, The q-th power algorithm for the integral closure April 17 No seminar on account of Cannon's minicourse in Brussels April 24 No seminar on account of Lovász' minicourse in Eindhoven May 1 Man Nguyen Van Minh, Constructions of Hadamard matrices Hans Zantema, Hardware verification by graph manipulation May 8 Don Taylor, Graphs, symmetries and NP-completeness roblem hour. For instance: Prove that the rewrite rule 0011 => 111000 on binary strings leads to a terminating procedure. (submitted by Hans Zantema.) May 29 Tanja Lange (Ruhr-Universität Bochum), Trace-Zero Subvariety for Cryptosystems Arjen K. Lenstra, Special purpose hardware devices for integer factorization June 5 Hanspeter Kraft (Basel), Hyperplane sections and separation of orbits in representation spaces Bernd Souvignier (Nijmegen), Methods of mathematical crystallography June 12 Rudolf Tange, Extremal elements in Lie algebras September 18 Andries Brouwer, Polynomial time primality testing, I Arjeh Cohen, Artin groups and BMW algebras September 25 Roderik Lindenbergh (Utrecht), Limits of Voronoi diagrams Andries Brouwer, Polynomial time primality testing, II October 16 Hans Cuypers, Triality and Octaves Bas Lemmens (Eurandom), On the size of the transitive groups of sup-norm isometries October 30 Hans Cuypers, Near hexagons and triality November 6 Bas Lemmens (Eurandom), On the size of the transitive groups of sup-norm isometries, II Bernhard Mühlherr, Involutions fixing exceptional quadrangles November 13 Henny Wilbrink, Difference sets in dihedral groups November 20 No seminar in view of EIDMA's aio activities of this week November 27 Ruud Pellikaan, List decoding by interpolation December 4 Ulrich Meierfrankenfeld (MSU, East Lansing), Locally finite simple groups December 11 Berry Schoenmakers, Key distribution using the Weil pairing Jaap Top, On the number of points on a planar quartic curve over a finite field