Miroslav Bavc'ak

Minimal Lipschitz and ∞-harmonic extensions of vector-valued functions on finite graphs

G. Steidl, J. Hertrich, S. Neumayer, 2019, Information and Inference: A Journal of the IMA.

A notion of nonpositive curvature for general metric spaces

J. Jost, B. Hua, A. Schikorra, 2014, 1404.0995.