Let $M$ be a connected closed conformal oriented manifold.
Assume there exist conformal covering maps $\phi_k:M\to M$ of all degrees $k\geq 1$. Is $M\cong S^1$ then?
Can we at least rule out $\mathrm{dim}(M)=3$?
Let $M$ be a connected closed conformal oriented manifold.
Assume there exist conformal covering maps $\phi_k:M\to M$ of all degrees $k\geq 1$. Is $M\cong S^1$ then?
Can we at least rule out $\mathrm{dim}(M)=3$?