Michael Orrison

Michael Orrison
Professor of Mathematics
Department of Mathematics
Harvey Mudd College


Current teaching interests include linear algebra, abstract algebra, discrete mathematics, and representation theory. This year (2019-2020), I will be teaching Math 55 (Discrete Mathematics), Math 171 (Abstract Algebra), and Math Forum (Public Speaking).


Current research interests include harmonic analysis on finite groups and algebraic voting theory. I am particularly interested in finding, exploring, and describing applications of the representation theory of finite groups with the help of my talented and energetic undergraduate research students.


If you are an elementary, junior high, or high school teacher in the Los Angeles area, you might be interested in our popular outreach program called Pathways. Visit the Pathways homepage to learn more about who we are, what we do, and why we do it. We would love to visit your school!

Study Abroad

If you are computer science, software engineering, or computational biology major, and you are thinking about studying abroad, check out the Aquincum Institute of Technology (AIT) in Budapest, Hungary. Together with Ran Libeskind-Hadas, I'm one of the AIT North American Co-directors.


If I have agreed to write recommendation letters for you, please visit my recommendations page at least two weeks before the first letter is due. Also, please feel free to chat with me about ways you can make the letter writing process go smoothly for both you and your letter writers.