5 papers
Compact Manifolds with Unbounded Nilpotent Fundamental Groups and Positive Ricci Curvature
Elia Bruè, Aaron Naber, Daniele Semola
It follows from the work of Kapovitch and Wilking that a closed manifold with nonnegative Ricci curvature has an almost nilpotent fundamental group. Leftover questions and conjectu…
Six dimensional counterexample to the Milnor Conjecture
Elia Bruè, Aaron Naber, Daniele Semola
We extend our previous work by building a smooth complete manifold with and whose fundamental group is infinitely…
Fukaya-Yamaguchi Conjecture in Dimension Four
Elia Bruè, Aaron Naber, Daniele Semola
Fukaya and Yamaguchi conjectured that if is a manifold with nonnegative sectional curvature, then the fundamental group is uniformly virtually abelian. In this short note we…
Uniqueness on average of large isoperimetric sets in noncompact manifolds with nonnegative Ricci curvature
Gioacchino Antonelli, Marco Pozzetta, Daniele Semola
Let be a complete Riemannian manifold which is not isometric to , has nonnegative Ricci curvature, Euclidean volume growth, and quadratic Riemann curvature…
Monotonicity formula and stratification of the singular set of perimeter minimizers in RCD spaces
Francesco Fiorani, Andrea Mondino, Daniele Semola
The goal of this paper is to establish a monotonicity formula for perimeter minimizing sets in RCD(0,N) metric measure cones, together with the associated rigidity statement. The a…