Motif based hierarchical random graphs: structural properties and critical points of an Ising model

A class of random graphs is introduced and studied. The graphs are constructed in an algorithmic way from five motifs which were found in [Milo R., Shen Orr S., Itzkovitz S., Kashtan N., Chklovskii D., Alon U., Science, 2002, 298, 824 – 827]. The construction scheme resembles that used in [Hinczewsk...

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Published in:Condensed Matter Physics
Date:2011
Main Authors: Kotorowicz, Monika, Kozitsky, Yuri
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2011
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/119972
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Motif based hierarchical random graphs: structural
 properties and critical points of an Ising model
 / Monika Kotorowicz, Yuri Kozitsky // Condensed Matter Physics. — 2011. — Т. 14, № 1. — С. 13801: 1-18. — Бібліогр.: 30 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:A class of random graphs is introduced and studied. The graphs are constructed in an algorithmic way from five motifs which were found in [Milo R., Shen Orr S., Itzkovitz S., Kashtan N., Chklovskii D., Alon U., Science, 2002, 298, 824 – 827]. The construction scheme resembles that used in [Hinczewski M., A. Nihat Berker, Phys. Rev. E, 2006, 73, 066126], according to which the short-range bonds are non-random, whereas the long-range bonds appear independently with the same probability. A number of structural properties of the graphs have been described, among which there are degree distributions, clustering, amenability, small-world property. For one of the motifs, the critical point of the Ising model defined on the corresponding graph has been studied. Вводиться i вивчається клас випадкових графiв, збудованих в алгоритмiчний спосiб з п’яти мотивiв, знайдених у [Milo R., Shen-Orr S., Itzkovitz S., Kashtan N., Chklovskii D., Alon U., Science, 2002, 298, 824]. Конструкцiйна схема нагадує схему, застосовану у
 [Hinczewski M., A. Nihat Berker, Phys. Rev. E, 2006, 73, 066126], згiдно з якою короткосяжнi ребра є невипадковi, тодi як довгосяжнi ребра виникають незалежно iз однаковою ймовiрнiстю. Описано ряд структурних властивостей графiв, серед яких
 є розподiл ступенiв, кластернiсть, аменабiльнiсть, властивiсть тiсного свiту. Для одного з мотивiв вивчається критична точка моделi Iзiнга, визначеної на вiдповiдному графi.
ISSN:1607-324X