# Recent Research Talks

**A Structure Theorem for Suborder Lower Ideals of Series Parallel Posets**

- AMS Spring Southeastern Section Meeting (2012)
- Wright State University Combinatorics Seminar (2012)
- George Mason University CAGS Seminar (2011)
- OSU Combinatorics Seminar (2011)

**Unifying Laver's Theorem and the Graph Minor Theorem via Proof System Minors**- George Mason University CAGS Seminar (2011)
- Joint Mathematics Meeting (2011)
- George Washington University Combinatorics Seminar (2010)
- Wright State Combinatorics Seminar, Two Part Talk. (2010)
- University of Kentucky AMS Sectional Meeting (Matroid Section) (2010)
- OSU Logic Seminar (2010)

**Excluding Cycles as Degree Sequences**

OSU Combinatorics Seminar (2011)**A Semigroup Proof of Bounded Rao and its Bipartite Analogue**

OSU Combinatorics Seminar (2010)