2 problems

Periodic-attractor bound. There exists a neighbourhood ${\cal F} \subset C^3({\cal N})$ of $f$ such that for any $g\in {\cal F}$ the number of periodic attractors of $g$ is bounded…

A coherent system is a system whose interaction graph has no directed negative loops. In a classical and often-quoted 1981 paper, R. Thomas conjectured that coherent systems do not…