2.1k citations · 6.8k across the 65 of their papers we have counts for
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Stability of money: Phase transitions in an Ising economy
Stefan Bornholdt, Friedrich Wagner
The stability of money value is an important requisite for a functioning economy, yet it critically depends on the actions of participants in the market themselves. Here we model t…
Self-organized critical neural networks
Stefan Bornholdt, Torsten Roehl
A mechanism for self-organization of the degree of connectivity in model neural networks is studied. Network connectivity is regulated locally on the basis of an order parameter of…
Co-Evolution of quasispecies: B-cell mutation rates maximize viral error catastrophes
Christel Kamp, Stefan Bornholdt
Co-evolution of two coupled quasispecies is studied, motivated by the competition between viral evolution and adapting immune response. In this co-adaptive model, besides the class…
Emergence of a small world from local interactions: Modeling acquaintance networks
Joern Davidsen, Holger Ebel, Stefan Bornholdt
How does one make acquaintances? A simple observation from everyday experience is that often one of our acquaintances introduces us to one of his acquaintances. Such a simple trian…