English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Scale-free networks are a recently developed approach to model theinteractions found in complex natural and man-made systems. Such networksexhibit a power-law distribution of node link (degree) frequencies n(k) inwhich a small number of highly connected nodes predominate over a much greaternumber of sparsely connected ones. In contrast, in an Erdos-Renyi network eachof N sites is connected to every site with a low probability p (of the orde rof 1/N). Then the number k of neighbors will fluctuate according to a Poissondistribution. One can instead assume that each site selects exactly k neighborsamong the other sites. Here we compare in both cases the usual network with thedirected network, when site A selects site B as a neighbor, and then Binfluences A but A does not influence B. As we change from undirected todirected scale-free networks, the spontaneous magnetization vanishes after anequilibration time following an Arrhenius law, while the directed ER networkshave a positive Curie temperature.Comment: 10 pages including all figures, for Int. J, Mod. Phys. C 1

COMPARISON OF ISING MAGNET ON DIRECTED VERSUS UNDIRECTED ERDÖS–RÉNYI AND SCALE-FREE NETWORKS