2 problems

Let $C_m$ be the cycle graph with $m$ edges, and let $\mathcal M(C_m)$ be its moduli space of self-avoiding polygonal linkages modulo orientation-preserving Euclidean isometries. L…

Four-bar linkage pop-reachability conjecture. For almost every four-bar linkage, the neighborhood of any configuration that can be reached by smooth motion can also be reached by a…