Special Session 77 Singularity and regularity in nonlinear PDEs
Organizer(s): Berikbol , Matteo 		Room 432
 8:30-9:00  Hiroyuki Takamura (Tohoku University, Japan)
 The lifespan estimates of solutions to systems of weighted nonlinear wave equations in 1D

Special Session 175 Modern Trends in Partial Differential Equations and General Relativity
Organizer(s): Anahit , Makoto , Karen 		Room 739
 9:00-10:00  Hiroyuki Takamura (Tohoku University, Japan)
 Spatially weighted nonlinear wave equations in 1D and Li-Zhou theorem