2 papers
math.ST2017
Congruent families and invariant tensors
Lorenz Schwachhöfer, Nihat Ay, Jürgen Jost +1
Classical results of Chentsov and Campbell state that -- up to constant multiples -- the only -tensor field of a statistical model which is invariant under congruent Markov morp…
q-bio.MN2016
Forman curvature for complex networks
R. P. Sreejith, Karthikeyan Mohanraj, Jürgen Jost +2
We adapt Forman's discretization of Ricci curvature to the case of undirected networks, both weighted and unweighted, and investigate the measure in a variety of model and real-wor…