2 problems

For every closed smooth strong spacelike curve $\gamma_0\subset\mathbb{R}^{2,q}$ of index $1$, the solution $\gamma(\cdot,t)$ of the usual curve-shortening flow exists up to a fini…

Rigidity conjecture. Then $u^\alpha(x)$ is a linear function for each $\alpha=1,\ldots,n$.