# Seunghyun Seo

Tel: +82-33-250-6721

Fax: +82-33-259-5599

E-mail: shyunseo (AT) kangwon.ac.kr

**Teaching: 2017 spring**

- Topology 1
- Topics in algebra
- Combinatorics and Graph Theory

**Research Area**

- Enumerative Combinatorics
- Algebraic Combinatorics

**Education **

- 2004, Ph. D. Dept. of Mathematics, KAIST (advisor: Dongsu Kim)
- 1998, M. S. Dept. of Mathematics, KAIST
- 1996, B. S. Dept. of Mathematics Education, Seoul National University

**Visiting Position**

- 2004-2005, Visiting Scholar, Department of Mathematics, Brandeis University (mentor: Ira Gessel)
- 2016-2017, Visiting Scholar, Department of Mathematics, The Pennsylvania State University (mentor: Ae Ja Yee)

**Employment**

- 2012-present, Associate Professor, Department of Mathematics Education, Kangwon National University
- 2008-2012, Assistant Professor, Department of Mathematics Education, Kangwon National University
- 2007-2008, Lecturer, Department of Mathematics Education, Cheongju University
- 2005-2007, Instructor, Department of Mathematics, Seoul National University

**Publications**

- The Catalan Threshold Arrangement,
*Journal of Integer Sequences*20(1) (2017), Article 17.1.1. - Combinatorial Enumeration of the Regions of Some Linear Arrangements,
*Bulletin of Korean Mathematical Society*53(5) (2016), 1281-1289. - Signed a-polynomials of graphs and Poincaré polynomials of real toric manifolds (with Heesung Shin),
*Bulletin of Korean Mathematical Society*52(2) (2015), 467-481. - Annular noncrossing permutations and minimal transitive factorizations (with Jang Soo Kim and Heesung Shin),
*Journal of Combinatorial Theory, series A*124(2014), 251-262. - Shi-threshold arrangements,
*Electronic Journal of Combinatorics*19(3) (2012), P39. - Enumeration of 0/1-matrices avoiding some 2x2 matrices (with Hyeong-Kwan Ju),
*Discrete Mathematics*312(16) (2012), 2473-2481. - A refinement for ordered labeled trees (with Heesung Shin),
*Korean Journal of Mathematics*20(2) (2012), 255-261. - On the enumeration of rooted trees with fixed size of maximal decreasing trees (with Heesung Shin),
*Discrete Mathematics*312(2) (2012), 419-426. - Combinatorial proofs of inverse relations and log-concavity for Bessel numbers (with Hyuk Han),
*European Journal of Combinatorics*29(2008), 1544-1554. - A Generalized enumeration of labeled trees and reverse Prüfer algorithm (with Heesung Shin),
*Journal of Combinatorial Theory, series A*114 (2007), 1357-1361. - An efficient top-down search algorithm for learning Boolean networks of gene expression (with Dougu Nam, Sangsoo Kim),
*Machine Learning*65(1) (2006), 229-245. - A refinement of Cayley's formula for trees (with Ira Gessel),
*Electronic Journal of Combinatorics*11(2) (2006), R27. - A combinatorial proof of Postnikov's identity and a generalized enumeration of labeled trees,
*Electronic Journal of Combinatorics*11(2) (2005), N3. - Colored Prüfer codes for k-edge colored trees (with Manwon Cho et al),
*Electronic Journal of Combinatorics*11(1) (2004), N10. - Transitive cycle factorizations and prime parking functions (with Dongsu Kim),
*Journal of Combinatorial Theory, series A*104 (2003), 125-135.