Special Session 43 Hamiltonian Dynamics and Celestial Mechanics
Organizer(s): Zhifu , Marian , Ernesto 		Capital Suite 21 A
 12:30-13:00  Zhifu Xie (The University of Southern Mississippi, USA)
 Investigation of Bifurcations of Central Configurations

Special Session 38 Recent advances in the n-body problem
Organizer(s): Kuo-Chang , Mitsuru , Guowei 		Capital Suite 15
 14:30-15:00  Zhifu Xie (The University of Southern Mississippi, USA)
 Progress on four-body central configurations