C. Ketterer

activity

20162023

most citedRigidity for the spectral gap on

R C D (K, \infty)

-spaces

9 citations · 9 across the 3 of their papers we have counts for

collaborators

Showing 2023 · math.DGShow all

2 papers · 2 filters

math.DG2023

Glued spaces and lower Ricci curvature bounds

Christian Ketterer

We consider Riemannian manifolds $M_{i}$ , $i = 0, 1$ , with boundary and $Φ_{i} \in C^{\infty} (M_{i})$ non-negative such that the pair $(M_{i}, Φ_{i})$ admits Bakry-Emery $N$ -Ricci curvature bo…

math.DG2023

Characterization of the null energy condition via displacement convexity of entropy

Christian Ketterer

We characterize the null energy condition for an $(n + 1)$ -dimensional Lorentzian manifold in terms of convexity of the relative $(n - 1)$ -Renyi entropy along displacement interpolatio…