Nonlinear Perron-Frobenius theory
by Nussbaum, Roger D., Lemmens, Bas
fromCambridge tracts in mathematics
"Sometimes in mathematics an innocent-looking observation opens up a new road to a fertile field. A nice example of such an observation is due to Garrett Birkhoff [23] and Hans Samelson [187], who remarked that one can use Hilbert's (projective) metric and the contraction mappin…