# Olympiad Materials

Here are some notes and problem sets that I created while preparing for various mathematical olympaids.

## Handouts

- Inversion – Based on Evan Chen’s
*Euclidean Geometry in Mathematical Olympiads* - Geometry Revisited - Before Transformations – A rather brief summary of the first three chapters of H. S. M. Coxeter and S. L. Greitzer’s
*Geometry Revisited* - Introduction to Olympiad Graph Theory – A handout and collection of problems covering the basics of Olympiad Graph Theory, created for training with the Irish Mathematical Olympiad team.

## Problem Sets

The following is a collection of problems that have appeared on the Irish Mathematical Olympaid (IrMO) or the Irish EGMO selection test. The questions are grouped by topic.