A fixed point theorem for Boolean networks expressed in terms of forbidden subnetworks

We are interested in fixed points in Boolean networks, $\textit{i.e.}$ functions $f$ from $\{0,1\}^n$ to itself. We define the subnetworks of $f$ as the restrictions of $f$ to the hypercubes contained in $\{0,1\}^n$, and we exhibit a class $\mathcal{F}$ of Boolean networks, called even or odd self-d...

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Autor principal: Adrien Richard
Formato: Artigo
Idioma:English
Publicado em: Discrete Mathematics & Theoretical Computer Science 2011-01-01
coleção:Discrete Mathematics & Theoretical Computer Science
Assuntos:
Acesso em linha:https://dmtcs.episciences.org/2978/pdf
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author Adrien Richard
author_facet Adrien Richard
author_sort Adrien Richard
collection DOAJ
description We are interested in fixed points in Boolean networks, $\textit{i.e.}$ functions $f$ from $\{0,1\}^n$ to itself. We define the subnetworks of $f$ as the restrictions of $f$ to the hypercubes contained in $\{0,1\}^n$, and we exhibit a class $\mathcal{F}$ of Boolean networks, called even or odd self-dual networks, satisfying the following property: if a network $f$ has no subnetwork in $\mathcal{F}$, then it has a unique fixed point. We then discuss this "forbidden subnetworks theorem''. We show that it generalizes the following fixed point theorem of Shih and Dong: if, for every $x$ in $\{0,1\}^n$, there is no directed cycle in the directed graph whose the adjacency matrix is the discrete Jacobian matrix of $f$ evaluated at point $x$, then $f$ has a unique fixed point. We also show that $\mathcal{F}$ contains the class $\mathcal{F'}$ of networks whose the interaction graph is a directed cycle, but that the absence of subnetwork in $\mathcal{F'}$ does not imply the existence and the uniqueness of a fixed point.
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spelling doaj.art-3c36c06046084a649bbc4ff4621289e12024-03-07T14:50:09ZengDiscrete Mathematics & Theoretical Computer ScienceDiscrete Mathematics & Theoretical Computer Science1365-80502011-01-01DMTCS Proceedings vol. AP,...Proceedings10.46298/dmtcs.29782978A fixed point theorem for Boolean networks expressed in terms of forbidden subnetworksAdrien Richard0Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe BIOINFOWe are interested in fixed points in Boolean networks, $\textit{i.e.}$ functions $f$ from $\{0,1\}^n$ to itself. We define the subnetworks of $f$ as the restrictions of $f$ to the hypercubes contained in $\{0,1\}^n$, and we exhibit a class $\mathcal{F}$ of Boolean networks, called even or odd self-dual networks, satisfying the following property: if a network $f$ has no subnetwork in $\mathcal{F}$, then it has a unique fixed point. We then discuss this "forbidden subnetworks theorem''. We show that it generalizes the following fixed point theorem of Shih and Dong: if, for every $x$ in $\{0,1\}^n$, there is no directed cycle in the directed graph whose the adjacency matrix is the discrete Jacobian matrix of $f$ evaluated at point $x$, then $f$ has a unique fixed point. We also show that $\mathcal{F}$ contains the class $\mathcal{F'}$ of networks whose the interaction graph is a directed cycle, but that the absence of subnetwork in $\mathcal{F'}$ does not imply the existence and the uniqueness of a fixed point.https://dmtcs.episciences.org/2978/pdffeedback circuitboolean networkfixed pointself-dual boolean functiondiscrete jacobian matrix[info.info-dm] computer science [cs]/discrete mathematics [cs.dm][math.math-ds] mathematics [math]/dynamical systems [math.ds][nlin.nlin-cg] nonlinear sciences [physics]/cellular automata and lattice gases [nlin.cg][math.math-co] mathematics [math]/combinatorics [math.co]
spellingShingle Adrien Richard
A fixed point theorem for Boolean networks expressed in terms of forbidden subnetworks
Discrete Mathematics & Theoretical Computer Science
feedback circuit
boolean network
fixed point
self-dual boolean function
discrete jacobian matrix
[info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
[math.math-ds] mathematics [math]/dynamical systems [math.ds]
[nlin.nlin-cg] nonlinear sciences [physics]/cellular automata and lattice gases [nlin.cg]
[math.math-co] mathematics [math]/combinatorics [math.co]
title A fixed point theorem for Boolean networks expressed in terms of forbidden subnetworks
title_full A fixed point theorem for Boolean networks expressed in terms of forbidden subnetworks
title_fullStr A fixed point theorem for Boolean networks expressed in terms of forbidden subnetworks
title_full_unstemmed A fixed point theorem for Boolean networks expressed in terms of forbidden subnetworks
title_short A fixed point theorem for Boolean networks expressed in terms of forbidden subnetworks
title_sort fixed point theorem for boolean networks expressed in terms of forbidden subnetworks
topic feedback circuit
boolean network
fixed point
self-dual boolean function
discrete jacobian matrix
[info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
[math.math-ds] mathematics [math]/dynamical systems [math.ds]
[nlin.nlin-cg] nonlinear sciences [physics]/cellular automata and lattice gases [nlin.cg]
[math.math-co] mathematics [math]/combinatorics [math.co]
url https://dmtcs.episciences.org/2978/pdf
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