1997

• July 8. Daewoo Workshop on Applied Mahtematics (AJOU University, Suwon, Korea)
  Title "Fast Numerical Computation of 2-D Vortex Sheet"
• Dec 1. Nonlinear Seminar (The University of Michigan, Ann Arbor, USA)
  Title "The application of Draghicescu's fast summation method to the motion of 2-D vortex sheet."

1999

• July 6, The fourth Internaional congress on industial and applied mathematics (ICIAM99) (Edinburgh, UK).
  Title " Numerical computation of three-dimensional vortex sheet in swirl flow.
• Oct. 26, 12th International conference on Domain Decomposition method (DDM12) (Chiba University, Japan)
  Title " Numerical computation of two-dimensional vortex sheet on beta plane"
• Nov. 4, The first international conference on vortex methods (VM99) (Kobe,Japan).
  Title "Numeircal computation of a three-dimensional vortex sheet in a swirl flow."

2000

• Dec. 12, Applied Math Seminar (UCLA, Los Angels, USA)
  Title " On a motion of a two-dimensional vortex sheet beyond singular time. "

2001

• June 19, Nonlinear Seminar (The University of Michigan, Ann Arbor, USA)
  Title " A motion of a two-dimensional vortex sheet and a model spiral "
• Sep. 26, The second international conference on vortex methods (ICVM2)(Istanbul Turkey)
  Title " A motion of a two-dimensional vortex sheet and a model spiral "

• Nov. 12, The 44th APS Annual meeting of Plasma physics (APS-DPP02)(Orlando USA)
  Title " Blow-up solutions of the Constantin-Lax-Majda equation with a generalized viscosity term "
• Nov. 20, Seminar on partial differential equations (The University of Michigan, Ann Arbor USA)
  Title " Blow-up solutions of the Constantin-Lax-Majda equation with a generalized viscosity term "
• Nov. 26, The 55th APS Annual meeting of fluid dynamics (APS-DFD02)(Dallas USA)
  Title " Blow-up solutions of the Constantin-Lax-Majda equation with a generalized viscosity term "

2003

Schedule of talks at foreign countries

• The 5th International conference on applied and industrial mathematics (ICIAM2003) ¡÷ Sydney.