Summer 2022 course:

Math 139 QR, Section 2/W (Online) July 5-August 13.

My office is Laurentide 2215, my Summer 2022 student office hours are 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

Publications

CV

My Mathematical Genealogy

Slides from talks:

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. Slides and Video from UW Space Place