학력

• 한국과학기술원 수학과 박사(Ph. D)

경력

• Wayne State University 방문교수
• 강릉원주대학교 자연과학 연구소장

주요논문

• The exponent of Cartesian product of cycles, Applied Math. Letters, 2009.01 (22) 561-564.
• Wielandt type theorem for Cartesian product of digraphs, Linear Algebra and its Applications, 2008. (429) 841-848.
• Primitive graphs with given exponents and minimum number of edges. Linear Algebra and its Applications, 2007 (420) 648-662.
• Nonnegative primitive matrices with exponent 2, Linear Algebra and its Applications, 2005 (407)162-168.
• Symmetries of some numerical semigroups, Journal of Applied Math. and Computing, 2005 (14-1,2)4 55-460.