Talks

Here are links to the slides for some of my recent talks. It's possible some of these slides will not display correctly on some browsers. If you notice a problem like this, please email me and I will try to correct it.

The Last Small Restricted Symmetric Permutation Enumeration, AMS Special Session on Permutation Patterns, Washington, DC, April 6, 2024, slides.
Evidence-Based Teaching: A Case Study, Fall Meeting of the North Central Section of the MAA, October 14, 2022, slides.
Pattern Avoiding Fishburn Permutations and Ascent Sequences, Joint Mathematics Meetings, AMS Special Session on Algebraic and Bijective Methods in Permutation Enumeration, Virtual, April 7, 2022, slides.
A Chromatic Symmetric Function for Signed Graphs, AMS Special Session on Combinatorics of Symmetric Functions, Athens, GA, March 5, 2016, slides.
A New Notion of Noncontiguous Containment for Ordered, Rooted Trees, AMS Special Session on Enumerative Combinatorics and Graph Theoretic Applications, Chicago, IL, October 4, 2015, slides.
Snow Leopard Permutations, Even Knots, Odd Knots, Janus Knots, and Restricted Catalan Paths, Midwest Combinatorics Conference, Minneapolis, MN, May 21, 2015, slides.
Catalan Combinatorics of Borel Ideals and Generalizations, AMS Special Session on Algebraic Combinatorics, Eau Claire, WI, September 21, 2014, slides.
Introducing 05A06: Patterns in Permutations in Words, AMS Special Session on Patterns in Permutations and Words, and Applications, Eau Claire, WI, September 20, 2014, slides.
New Pattern-Avoiding Permutations Counted by the Schroder Numbers, AMS Special Session on Permutation Patterns, Algorithms, and Enumerative Combinatorics, Rochester, NY, September 23, 2012, slides.
Pattern-Avoiding Permutations and Lattice Paths: Old Connections and New Links, MAA Mathfest Invited Paper Session Walk the Walk, Talk the Talk, Madison, WI, August 3, 2012, slides.
Linear Recurrences and the Pfaffian Transform, MAA Mathfest Invited Paper Session on Combinatorics and Matrices, Madison, WI, August 2, 2012, slides.
The Jacobi-Stirling Numbers, AMS Special Session on Symmetric Functions, Quasisymmetric Functions, and Associated Combinatorics, George Washington University, Washington, DC, March 18, 2012, slides.
Symmetric Permutations with No Long Decreasing Subsequences, Joint Mathematics Meetings, AMS Session on Discrete Mathematics, San Francisco, CA, January 15, 2010, slides.