An upper bound on the revised first Betti number and a torus stability result for RCD spaces

We prove an upper bound on the rank of the abelianised revised fundamental group (called "revised first Betti number") of a compact $RCD^{*}(K,N)$ space, in the same spirit of the celebrated Gromov-Gallot upper bound on the first Betti number for a smooth compact Riemannian manifold with R...

Full description

Bibliographic Details
Main Authors: Mondello, I, Mondino, A, Perales, R
Format: Journal article
Language:English
Published: EMS Press 2022