• Prof. Richard Schoen, University of California Irvine (UCI), USA
• Prof. Jean Pierre Bourguignon (IHES, France).
• Prof. Shin-Ichi Ohta, Osaka University, Japan
• Prof. Timothy Buttsworth, University of Queensland, Australia

     and 2 short communications

• Gunhee Cho, UCSB
• Nguyen Minh Hoang, Vietnam National University, Hanoi