N. Gigli and C. Rigoni, Recognizing the flat torus among $RCD^*(0,N)$ spaces via the study of the first cohomology group, (accepted by Calculus of Variation and Partial Differential Equations in 2018)

N. Gigli and C. Rigoni, A note about the strong maximum principle on RCD spaces, (accepted by Canadian Mathematical Bulletin in 2018)