**Problem of the Week**

**Math Club**

**DST and GT Day**

**Number Theory Conf.**

**Zassenhaus Conference**

**Hilton Memorial Lecture**

people:grads:schaefer:start

**Office hours:**M 10-11, W 1-2, F 11-12 (IN WH 235)**Courses:****Spring 2017**

Math 314 (Discrete) Section 02 : MWF 08:00 - 09:30 WH-G002 (Whitney Hall Basement)

Combinatorics/Graph Theory: Signed Graphs, Directed Graphs, Algebraic Graph Theory, Design Theory, Matroid Theory. I am currently working on signed complete graphs and highly transitive matchings.

**Balanced Non-Transitive Dice**with Jay Schweig, College Math J 48 (2017), no. 1 MathSciNet (preprint)**Strongly connectable digraphs and non-transitive dice**with Simon Joyce, Douglas B. West, and Thomas Zaslavsky (2015) Submitted for Publication (preprint)**The Negative Cycle Vectors of Signed Complete Graphs**(2015) Submitted for Publication (preprint)**Balanced Non-Transitive Dice II: Tournaments**In Revision**Highly transitive matchings in graphs**with Eric Swartz, In Revision

- GSCC 2017, April 2017. Title:
**Signed Graphs, Permutability, and 2-Transitive Perfect Matchings**(Slides) - MOVES 2015, August 2015. Title:
**Non-Transitive Dice and Directed Graphs**(Slides) - Le Moyne College Math Club, Syracuse, NY, February 2015. Title:
**Balanced Non-Transitive Dice**(Slides) - SUNY Oneonta Lecture Series, Oneonta, NY, February 2014. Title:
**Balanced Non-Transitive Dice**(Slides) - Binghamton University Combinatorics Seminar, November 2013. Title:
**Crapo's $\beta$-invariant for Matroids (Part 1)** - Candidacy Exam, Binghamton University, November 2013. Title:
**Crapo's $\beta$-invariant for Matroids (Part 2)** - AMS Seaway Sectional, October 2013. Title:
**Non-Transitive Dice and Directed Graphs** - Binghamton University Math Club, September 2013. Title:
**Balanced Non-Transitive Dice** - Binghamton University GSOCS Research Colloquium, Binghamton, NY, April 2013. Title:
**Balanced Non-Transitive Dice** - Binghamton University Combinatorics Seminar, April 2013. Title:
**Matroid Designs: A Crash Course in Finite Geometry and Design Theory** - Binghamton University Combinatorics Seminar, November 2012. Title:
**Introduction to Phylogenetic Combinatorics** - Binghamton University Combinatorics Seminar, September 2012. Title:
**Realizing Directed Graphs** - Binghamton University Combinatorics Seminar, September 2011. Title:
**Balanced Non-Transitive Dice** - University of Kansas Master's Defense, April 2011. Title:
**Balanced Non-Transitive Dice** - Michigan Technological University Master's Defense, April 2008. Title:
**Level Algebras: Hilbert Functions and Trivial Extensions**

- Discrete Mathematics, Spring 2017
- Calc 2 (2 sections), Fall 2016
- Calc 3, Summer 2016
- Discrete Mathematics, Spring 2016
- Discrete Mathematics, Fall 2015
- Calc 3, Summer 2015
- Calc 1, Fall 2014
- Calc 3, Summer 2014
- Calc 2, Spring 2014
- Calc 1, Fall 2013
- Algebra and Precalculus, Binghamton Enrichment Program, Summer 2013
- Calc 3, Summer 2013
- Calc 2, Spring 2013
- Precalculus, Fall 2012
- Algebra and Precalculus, Binghamton Enrichment Program, Summer 2012
- Calc 1, Spring 2012
- Precalculus, Fall 2011
- Precalculus, Spring 2011
- Calc 2 (2 sections), Fall 2010
- Executive Tutor, Calculus Help Room, Spring 2010
- Precalculus, Fall 2009
- Intermediate Algebra (2 sections), Spring 2009
- Calc 1 (2 sections), Fall 2008
- Calc 2, Summer 2008
- Calc 2, Spring 2008
- Calc 1, Fall 2007
- Calc 1, Summer 2007
- Calc 1, Spring 2007
- Calc 1 TA, Fall 2006
- Executive Tutor, Math Learning Center, 2004-2006

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