Mesoscopics and fluctuations in networks

We describe fluctuations in finite-size networks with a complex distribution of connections, P(k). We show that the spectrum of fluctuations of the number of vertices with a given degree is Poissonian. These mesoscopic fluctuations are strong in the large-degree region, where P(k) less, similar 1/N...

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Veröffentlicht in:Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics Statistical physics, plasmas, fluids, and related interdisciplinary topics, 2003-03, Vol.67 (3 Pt 2), p.037103-037103, Article 037103
Hauptverfasser: Dorogovtsev, S N, Samukhin, A N
Format: Artikel
Sprache:eng
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Zusammenfassung:We describe fluctuations in finite-size networks with a complex distribution of connections, P(k). We show that the spectrum of fluctuations of the number of vertices with a given degree is Poissonian. These mesoscopic fluctuations are strong in the large-degree region, where P(k) less, similar 1/N (N is the total number of vertices in a network), and are important in networks with fat-tailed degree distributions.
ISSN:1539-3755
1063-651X
1095-3787
DOI:10.1103/PhysRevE.67.037103