2 problems

Let $E_c$ be the energy threshold, $N$ the system size, ${\cal T}$ the dynamics, $\Omega$ an initial state, and ${\cal S}$ the singularity set. The distance between a point and a s…

Let $\Lambda$ be a $d$-dimensional square lattice of edge length $L$, with $N=L^d$ sites, and let $E_c>0$ be the critical energy. A configuration is stable when every site energy l…