The Coriolis effect-induced $B^s_{\infty,r}$ and $B^s_{1,r}$ ill-posedness in the 3D rotating Euler equations

In this paper, we establish the ill-posedness of the 3D rotating Euler equations in endpoint $L^{\infty}$ and $L^1$-based spaces. More precisely, our aim is two fold: (1) we prove an endpoint ill-posedness in any $B^s_{\infty,r}$ of the velocity formulation for the 3D rotating Euler equations. To th