2 problems

Let $\Sigma$ be the singular set of the anisotropic obstacle problem, and let $A$ be the coefficient matrix with ellipticity constants. $C^{1,\alpha}$-rectifiability conjecture. Th…

Let $\rho$ be a solution to the porous medium equation on $[-1,0] \times B_2(0)$. Assume that there is a nonempty open cone $C$ such that $\rho(t,x) \leq \rho(t,y)$ whenever…