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Hauptverfasser: Carratelli, Giovanni Pugliese, Leastas, Ioannis
Format: Preprint
Veröffentlicht: 2024
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Online-Zugang:https://arxiv.org/abs/2409.05667
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author Carratelli, Giovanni Pugliese
Leastas, Ioannis
author_facet Carratelli, Giovanni Pugliese
Leastas, Ioannis
contents We consider a class of birth/death like process corresponding to coupled biochemical reactions and consider the problem of quantifying the variance of the molecular species in terms of the rates of the reactions. In particular, we address this problem in a configuration where a species is formed with a rate that depends nonlinearly on another spontaneously formed species. By making use of an appropriately formulated expansion based on the Newton series, in conjunction with spectral properties of the master equation, we derive an analytical expression that provides a hard bound for the variance. We show that this bound is exact when the propensities are linear, with numerical simulations demonstrating that this bound is also very close to the actual variance. An analytical expression for the covariance of the species is also derived.
format Preprint
id arxiv_https___arxiv_org_abs_2409_05667
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Variance bounds for a class of biochemical birth/death like processes via a discrete expansion and spectral properties of the Master equation
Carratelli, Giovanni Pugliese
Leastas, Ioannis
Probability
We consider a class of birth/death like process corresponding to coupled biochemical reactions and consider the problem of quantifying the variance of the molecular species in terms of the rates of the reactions. In particular, we address this problem in a configuration where a species is formed with a rate that depends nonlinearly on another spontaneously formed species. By making use of an appropriately formulated expansion based on the Newton series, in conjunction with spectral properties of the master equation, we derive an analytical expression that provides a hard bound for the variance. We show that this bound is exact when the propensities are linear, with numerical simulations demonstrating that this bound is also very close to the actual variance. An analytical expression for the covariance of the species is also derived.
title Variance bounds for a class of biochemical birth/death like processes via a discrete expansion and spectral properties of the Master equation
topic Probability
url https://arxiv.org/abs/2409.05667