Fall 2022 courses:

Math 139, QR, Sections 11 (TuTh 11-12:15 Heide 102), 28/W (Online), and 34 (MoWe 9:30-10:45 Hyland 2311);

Math 151-2, Trigonometry (MoWe 11-12:15 Hyland 1310)

Math 250-1, Applied Calculus (MoWe 2-2:50, TuTh 2-3:15 Heide 117)

My office is Laurentide 2215, my Fall 2022 student office hours are Mondays, Tuesdays, Wednesdays, and Thursdays from 12:30pm until 1:45pm and by appointment. They may still be via webex. Yes, my office has both Packers and Broncos stuff in it. Here's why. I've also traveled to 5 continents, 16 countries (or maybe 15 or 17 depending on your interpretations of Falkland sovereignty and the Antarctic Treaty), and 38 US states (plus a district and a territory), as well as some land that's not part of any country.

Current research:

Boolean Algebras

Infinite Graph Theory

Set Theory



My Mathematical Genealogy


November 17, 2012. BAs & Hypergraphs

September 20, 2017. Measuring Starlight Deflection during the 2017 Eclipse.

April 6 and 10, 2018, updated version of above at MAA-Wisconsin Section meeting and Video from UW Space Place