selected publications academic article Jo, J. H., Lee, J. B., & Lee, S. R. (2014). The $R_{infty}$ property for Houghton's groups Brady, N., Guralnik, D., & Lee, S. R. (2011). Dehn functions and finiteness properties of subgroups of perturbed right-angled Artin groups
teaching activities MATH140 Math For Business And Soc Sci Instructor MATH151 Engineering Math I Instructor MATH152 Engineering Math Ii Instructor MATH251 Engineering Math Iii Instructor MATH304 Linear Algebra Instructor MATH308 Differential Equations Instructor MATH396 Communications In Math Instructor MATH666 Seminar In Geometry Instructor MATH685 Directed Studies Instructor MATH689 Sptp: Topology Instructor
education and training Ph.D. in Mathematics, University of Oklahoma - (Norman, Oklahoma, United States) 2012 M.A. in Mathematics, Sogang University - (Seoul, South Korea) 2004 B.A. in Mathematics, Sogang University - (Seoul, South Korea) 2001