On the abelian structure of noncompetitive chemical reaction networks

Fuente: arXiv
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Main Authors: Faul, Louis, Richard, Xavier, Betrisey, Mary, Mazza, Christian
Format: Preprint
Published: 2025
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author Faul, Louis
Richard, Xavier
Betrisey, Mary
Mazza, Christian
author_facet Faul, Louis
Richard, Xavier
Betrisey, Mary
Mazza, Christian
contents Chemical reaction networks (CRNs) are foundational models for describing complex biochemical processes. We study noncompetitive CRNs, a class of networks whose static states are rate-independent, and that can implement ReLU neural networks. A central contribution of this work is that noncompetitive CRNs are special instances of Abelian networks (ANs) a well-established framework for self-organized criticality. CRNs of interest in biochemistry and systems biology are embedded in complex networks so that local CRNs have to respond to internal and environmental cues. We describe the network's response to such perturbations using a sandpile Markov chain whose state space is the set of CRN's static states, from where no reaction is possible. The addition of molecules to a static state induces reactions that move the system into a new static state. For noncompetitive CRNs of finite state space, we use AN theory to get that the fraction of static states that are recurrent is in one to one correspondence with the critical group of the AN. Overall, this work establishes a unified algebraic and probabilistic framework for analyzing the long-term behavior of noncompetitive CRNs.
format Preprint
id arxiv_https___arxiv_org_abs_2512_17491
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the abelian structure of noncompetitive chemical reaction networks
Faul, Louis
Richard, Xavier
Betrisey, Mary
Mazza, Christian
Molecular Networks
Probability
Chemical reaction networks (CRNs) are foundational models for describing complex biochemical processes. We study noncompetitive CRNs, a class of networks whose static states are rate-independent, and that can implement ReLU neural networks. A central contribution of this work is that noncompetitive CRNs are special instances of Abelian networks (ANs) a well-established framework for self-organized criticality. CRNs of interest in biochemistry and systems biology are embedded in complex networks so that local CRNs have to respond to internal and environmental cues. We describe the network's response to such perturbations using a sandpile Markov chain whose state space is the set of CRN's static states, from where no reaction is possible. The addition of molecules to a static state induces reactions that move the system into a new static state. For noncompetitive CRNs of finite state space, we use AN theory to get that the fraction of static states that are recurrent is in one to one correspondence with the critical group of the AN. Overall, this work establishes a unified algebraic and probabilistic framework for analyzing the long-term behavior of noncompetitive CRNs.
title On the abelian structure of noncompetitive chemical reaction networks
topic Molecular Networks
Probability
url https://arxiv.org/abs/2512.17491