From Color-Avoiding to Color-Favored Percolation in Diluted Lattices

We study the problem of color-avoiding and color-favored percolation in a network, i.e., the problem of finding a path that avoids a certain number of colors, associated with vulnerabilities of nodes or links, or is attracted by them. We investigate here regular (mainly directed) lattices with a fra...

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Main Authors: Michele Giusfredi, Franco Bagnoli
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Future Internet
Subjects:
Online Access:https://www.mdpi.com/1999-5903/12/8/139
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author Michele Giusfredi
Franco Bagnoli
author_facet Michele Giusfredi
Franco Bagnoli
author_sort Michele Giusfredi
collection DOAJ
description We study the problem of color-avoiding and color-favored percolation in a network, i.e., the problem of finding a path that avoids a certain number of colors, associated with vulnerabilities of nodes or links, or is attracted by them. We investigate here regular (mainly directed) lattices with a fractions of links removed (hence the term “diluted”). We show that this problem can be formulated as a self-organized critical problem, in which the asymptotic phase space can be obtained in one simulation. The method is particularly effective for certain “convex” formulations, but can be extended to arbitrary problems using multi-bit coding. We obtain the phase diagram for some problem related to color-avoiding percolation on directed models. We also show that the interference among colors induces a paradoxical effect in which color-favored percolation is permitted where standard percolation for a single color is impossible.
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spelling doaj.art-3f915c4100c842c683398e5d066f951e2023-11-20T10:33:47ZengMDPI AGFuture Internet1999-59032020-08-0112813910.3390/fi12080139From Color-Avoiding to Color-Favored Percolation in Diluted LatticesMichele Giusfredi0Franco Bagnoli1Department of Physics and Astronomy and CSDC, University of Florence, via G. Sansone 1, 50019 Sesto Fiorentino, ItalyDepartment of Physics and Astronomy and CSDC, University of Florence, via G. Sansone 1, 50019 Sesto Fiorentino, ItalyWe study the problem of color-avoiding and color-favored percolation in a network, i.e., the problem of finding a path that avoids a certain number of colors, associated with vulnerabilities of nodes or links, or is attracted by them. We investigate here regular (mainly directed) lattices with a fractions of links removed (hence the term “diluted”). We show that this problem can be formulated as a self-organized critical problem, in which the asymptotic phase space can be obtained in one simulation. The method is particularly effective for certain “convex” formulations, but can be extended to arbitrary problems using multi-bit coding. We obtain the phase diagram for some problem related to color-avoiding percolation on directed models. We also show that the interference among colors induces a paradoxical effect in which color-favored percolation is permitted where standard percolation for a single color is impossible.https://www.mdpi.com/1999-5903/12/8/139percolationdirected percolationmulti-graphscolor-avoiding percolation
spellingShingle Michele Giusfredi
Franco Bagnoli
From Color-Avoiding to Color-Favored Percolation in Diluted Lattices
Future Internet
percolation
directed percolation
multi-graphs
color-avoiding percolation
title From Color-Avoiding to Color-Favored Percolation in Diluted Lattices
title_full From Color-Avoiding to Color-Favored Percolation in Diluted Lattices
title_fullStr From Color-Avoiding to Color-Favored Percolation in Diluted Lattices
title_full_unstemmed From Color-Avoiding to Color-Favored Percolation in Diluted Lattices
title_short From Color-Avoiding to Color-Favored Percolation in Diluted Lattices
title_sort from color avoiding to color favored percolation in diluted lattices
topic percolation
directed percolation
multi-graphs
color-avoiding percolation
url https://www.mdpi.com/1999-5903/12/8/139
work_keys_str_mv AT michelegiusfredi fromcoloravoidingtocolorfavoredpercolationindilutedlattices
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