Handouts
Miscellaneous
Selected Proposals (pdf)
A list of problems I've proposed to various competitions that I find particularly enjoyable. Solutions to most problems are included at the end.Geometry At Its Best (pdf)
A compiliation of thirty beautiful geometry problems. These vary greatly in difficulty, and utilize various techniques from olympiad geometry.
Selected lectures
Note: these handouts were originally designed to accompany lectures, so some details may be missing.Nuclear Geometry (pdf)
An advanced geometer's nuclear arsenal: homography, Desargue involution, and the method of animation.Follow the Arrows (pdf)
Strategies to deal with iterated FE's and relatives.Graph Theory (pdf)
A lengthy article based on various lectures on graph theory I have heard over the years, including some from MOP and some from Canada/USA Mathcamp.Advanced Counting (pdf)
Advanced counting arguments, based on lectures by CMU professor John Mackey.Density (pdf)
Analytical arguments based on asymptotic complexity and density; cotaught with Raymond Feng.