I am not teaching during Summer 2023.

Fall 2023 courses:

Math 93, Support for Quantitative Reasoning. Section 5 (MW 10am-10:50am Student Success Center 3009)

Math 139, Quantitative Reasoning. Sections 14 (TuTh 11am-12:15pm McGraw 117), 21 (MW 12:30pm-1:45pm McGraw 117), and 31/W (online)

Math 151, Trigonometry. Section 2 (2pm-3:15pm McGraw 117)

My office is Laurentide 2215, my Fall 2023 student office hours are Mondays and Wednesdays 11:15am-12:15pm, Tuesdays and Thursdays 9:45am-10:45am, 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 39 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