What does Minesweeper have to do with mathematical proofs?
Occasion: Mathematical Association of America, Illinois Section > 2021 Annual Meeting
Date/Time: March 13, 2021. 11:00am
Location: Virtual meeting.
Slides: PDF and LaTeX

An application of semi-definite programming to a "simple" linear algebra question
Occasion: Mathematical Association of America, Wisconsin Section > Spring 2018 Meeting
Date/Time: April 7, 2018. 10:30am.
Location: HHH 315. University of Wisconsin-Eau Claire. Eau Claire, WI (USA).
Slides: PDF and LaTeX

Superlinear diameters for combinatorial abstractions of polyhedra
Occasion: SIAM Conference on Optimization 2017
Date/Time: May 25, 2017. 2:45pm.
Location: Central Tower, Beluga (3rd floor). Sheraton Wall Centre, Vancouver, BC (Canada).
Slides: PDF and LaTeX

A Desmos demo to explore systems of linear equations and linear inequalities
Occasion: Research and Innovation in Teaching Mathematics with Technology
Date/Time: July 11, 2016
Location: University of Wisconsin-La Crosse. La Crosse, WI (USA)
Handout: PDF

Relating the Unit Circle to the Graphs of Sine and Cosine via Measurement
Occasion: Wisconsin Mathematics Council > 2015 Annual Conference
Date/Time: May 8, 2015
Location: Green Lake Conference Center. Green Lake, WI (USA)
Slides: PDF

Lattice Path Lagrangian Matroids
Occasion: Mathematical Association of America, Wisconsin Section > Spring 2015 Meeting
Date/Time:
Location: Ripon College. Ripon, WI (USA)
Slides: PDF

The transportation problem and the diameters of transportation polytopes
Occasion: University of Wisconsin-La Crosse > Department of Mathematics Colloquium
Date/Time: March 6, 2015. 4:00pm
Location: University of Wisconsin-La Crosse. La Crosse, WI (USA)
Slides: PDF and LaTeX [This file will not compile in ShareLaTeX, but it will (after about 7 minutes!) on a standalone computer.]

Linear programming and the efficiency of the simplex algorithm for transportation polytopes
Occasion: Loras College > Department of Mathematics Colloquium
Date/Time: February 20, 2015. 4:00pm
Location: Loras College. Dubuque, IA (USA)
Slides: PDF and LaTeX [This file will not compile in ShareLaTeX, but it will (after about 7 minutes!) on a standalone computer.]

Graphs of polytopes and abstract polytopes
Occasion: 2015 Joint Mathematics Meetings > MAA General Contributed Paper Session on Research in Graph Theory, I
Date/Time: January 12, 2015. 3:00pm
Location: 217B Henry B. González Convention Center. San Antonio, TX (USA)
Slides: LaTeX and PDF

Figures in LaTeX
Occasion: UW-L Math and Stats Club
Date/Time: November 20, 2014
Location: Centennial Hall. University of Wisconsin-La Crosse. La Crosse, WI (USA)
Slides: LaTeX and PDF

The Wacom Tablet: Flipping and other classroom uses
Occasion: Fall 2014 Project NExT Wisconsin Workshop
Date/Time: October 5, 2014
Location: University of Wisconsin-Sauk County. Baraboo, WI (USA)
Slides: LaTeX and PDF

Diameters of Transportation Polytopes
Occasion: Recent Advances in Linear Optimization
Date/Time: August 1, 2014
Location: École des Ponts ParisTech. Champs-sur-Marne, Paris, France
Slides: LaTeX [This file will not compile in ShareLaTeX, but it will (after about 7 minutes!) on a standalone computer.]

Polyhedral graph abstractions and an approach to the Linear Hirsch Conjecture
Occasion: Mathematical Association of America, Wisconsin Section > Spring 2014 Meeting
Date/Time: April 5, 2014
Location: University of Wisconsin-Whitewater. Whitewater, WI (USA)

Kissing, Coding, Bounding, and Semi-Definite Programming
Occasion: University of Wisconsin-La Crosse > Department of Mathematics Colloquium
Date/Time: October 25, 2013
Location: Centennial Hall. University of Wisconsin-La Crosse. La Crosse, WI (USA)
Slides: LaTeX and PDF