Six dimensional counterexample to the Milnor Conjecture

Elia Bruè, Aaron Naber, Daniele Semola

We extend our previous work by building a smooth complete manifold $(M^6,g,p)$ with $\mathrm{Ric}\ge 0$ and whose fundamental group $\ddot{I}{€}_1(M^6)=\mathbb{Q}/\mathbb{Z}$ is infinitely…