2012

• Mar. 15th, Applied Mathematics Seminar at The University of Pau (Pau, France)
  Title: "A potential theory with point vortices in multiply connected domains with slits"

2009

• Feb. 4th, Applied Mathematics Seminar at The University of Warick, (Warick, UK)
  Title: "Blow-up and global solutions for systems relate to the Constantin-Lax-Majda equation"
• Mar. 4th, Applied Mathematics Seminar at The University of Sheffield, (Sheffield, UK)
  Title: "Dynamics of point vortices in multiply connected domains"

2008

2005

• Nov. 18th, Seminar at Univ. of Michigan (Ann Arbor, USA),
  Title "A reduction method for the N vortex-point system on a sphere with pole vortices ", Nov. 18th 2005.
• Nov. 30th, Seminar at Univ. of Southern California (Los Angeles, USA),
  Title: "Invariant dynamical systems embedded in the N-vortex points system on a sphere with pole vortices"

2003

• Nov. 21st, Seminar on Applied Math. at Univ. of Michigan (Ann Arbor, MI USA)
  Title "Motion of vortex sheet on sphere with pole vortices."

2002

• Nov. 20, Seminar on partial differential equations at Univ. of Michigan (Ann Arbor, MI USA)
  Title "Blow-up solutions of the Constantin-Lax-Majda equation with a generalized viscosity term "

2001

• June 19, Nonlinear Seminar at Univ. of Michigan (Ann Arbor, MI USA)
  Title "A motion of a two-dimensional vortex sheet and a model spiral "

2000

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

1997

• Dec 1. Nonlinear Seminar at Univ. of Michigan (Ann Arbor, MI USA)
  2Title "The application of Draghicescu's fast summation method to the motion of 2-D vortex sheet."