Changhun Yang

Associate Professor

 Department of Mathematics, Chungbuk National University

 Chungdae-ro1, Seowon-gu, Cheongju-si, Chungcheongbuk-do, Korea.

 Office : S1-1, 425. 

 E-mail : chyang@chungbuk.ac.kr  or  maticionych@gmail.com