The free boundary problem involves all types of partial differential equations, such as the shock interface of the high dimensional Euler equation and the vacuum interface of the compressible Navier-Stokes equation, it is necessary to study the smoothness of the free boundary.

The Hua Loo-keng Center for Mathematical Science plans to hold seminars on free boundary problems in 2017. The person responsible for the event are Chen Guiqiang, Feimin Huang, Wang Dehua and Wang Yi.