L^2-concentration phenomenon for Zakharov system below energy norm

Daoyuan Fang, Sijia Zhong

In this paper, we'll prove a L^2-concentration result of Zakharov system in space dimension two, with radial initial data (u_0,n_0,n_1)\in H^s\times L^2\times H^{-1} ({16/17}<s<1),…