2 papers
math.GT2026
Angle cocycles, Euler characteristic, and simplicial volume of smooth manifolds
Michelle Bucher, Stefano Francaviglia, Grazia Rago
A celebrated conjecture of Gromov states that for closed aspherical manifolds, the vanishing of simplicial volume implies the vanishing of the Euler characteristic. We prove Gromov…
math.GT2026
Coarse higher medians, symmetric spaces, and convex projective geometry
Mitul Islam, Grazia Rago
We introduce a notion of coarse -median spaces that is a higher-rank analog of Bowditch's coarse median spaces. Our notion is stable under quasi-isometries and recovers Bowditch…