These are mostly old lectures (not updated) from conferences, seminars and classes. They are arranged (more or less) in reverse chronological order.
Fifty years of guesses: from plastic Mastermind to silicon Wordle, Retirement Colloquium, March 22, 2024 at GWU.
Mathematics of the Electoral College, Francis Marion University, Academic Seminar, May 14, 2018, Washington, DC (Older version of similar material: at GWU Dec 1 & 3, 2010: Part I, Part II).
Polyhedra in Mathematics and Art, Georgetown University Math Club, March 1, 2016
JUMP Showcase Mathematica Notebook on Chaos Theory, April 2014.
LaTeX for Students, September 2013.
Mathematical quasicrystals: the first 30 years. US Naval Academy Colloquium, February 20, 2013.
Number Theory and Maps of the Interval versions presented at various locations in 2012.
Absolute continuity vs total singularity, GWU Analysis Seminar, February 2, 2012: Prt I, Part II.
Directional Entropy, KIAS, Seoul, Korea, September 2010,Conference on Aperiodic Order.
Entropy-Zero Numeration, Lorentz Institute, Leiden, Netherlands, June 2010, Conference on Numeration.
Kari-Culick Tilings, CIRM, Marseille, March 2009, Conference on Tilings, Numeration and Computer Science.
Thirty Six Views of the Rauzy Fractal, Spring 2007, presented at various locations.
A survey of results on tiling dynamical systems, BIRS, Banf, Canada, July 2003.
Complexity of Self-affine tilings AMS Meeting, Northeastern University, Boston MA, October 2002.
