Ja A Jeong  
Talks:
  • Purely infinite simple C*-algebras, Univ. of Oregon, Colloquium, April 1994.
  • Real rank of C*-crossed products, AMS Special Session, Univ. of Oregon, June 1994.
  • Pure infiniteness of C*-crossed products by the integer group, The Fields Institute Seminar, November 1994.
  • Pure infiniteness of C*-crossed products by discrete groups, Univ. of Copenhagen, February 1996.
  • Cancellation of C*-crossed products, Ryukyu Univ., January 1997.
  • C*-crossed products by finite groups, Osaka Kyoiku Univ., February 1997.
  • Sable rank of C*-crossed products, International Conference for Operator Algebras and Operator Theory, East China Normal Univ., Shanghai, July 1997.
  • Graph C*-algebras as generalized Cuntz-Krieger Algebras, KMS Spring Meeting, Analysis Invited talk Duksung Women's Univ., April 1999.
  • Stable rank and real rank of graph C*-algebras, US-Japan Joint Seminar, Kyushu Univ., June 1999.
  • Real rank of graph C*-algebras, Operator Algebras and Mathematical Physics, Constanta, Romania, July 2001.
  • Topological entropy of canonical cp maps on graph C*-algebras, 2002 ICM Satellite Conference on Operator Algebras (Chengde, China), August 2002.
  • Topological entropy of canonical cp maps on C*-algebras, Workshop on Dynamical Systems, Ajou Univ., February. 2003.
  • Tpological entropy and graph C*-algebras, 2003 KOTAC, Chungnam National Univ., June 2003.
  • Shift spaces with countable states and their C*-algebras, Internatioal workshop on dynamical systems and related topics, Chungnam National Univ., August 18-21, 2004.
  • Dynamical systems in graph C*-algebras, KOTAC 2004, Operator Theory and its Applications Seoul National Univ., June 2004.
  • Cuntz-Krieger Algebras associated with Labeled Graphs, Special Week for Opertor Algebras, East China Normal Univ., June 19, 2013.
  • Finite group actions on higher dimensional noncommutative tori, KMS Fall meeting, Univ. of Seoul, October 25, 2013.
  • Finite simple C*-algebras of labeled spaces, Research on structure of operators by order and geometry with related topics, RIMS, Kyoto Univ., November 09, 2015.
  • Finite simple labeled graph C*-algebras associated with Cantor minimal subshifts, 7th Pacfic RIM Conference on Mathematics, Seoul National Univ., July 01, 2016.
  • Loops in labeled spaces and infiniteness of labeled graph C*-algebras, Special Session of KMS 2017 Spring Meeting, Chosun Univ., April 29, 2017.
  • Purely infnite labeled graph C*-algebras, The 3rd summer school on operator algebras and non-commutative geometry, Hebei Normal Univ., June 29, 2017.