2017
DOI: 10.3934/krm.2017042
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The entropy method for reaction-diffusion systems without detailed balance: First order chemical reaction networks

Abstract: In this paper, the applicability of the entropy method for the trend towards equilibrium for reaction-diffusion systems arising from first order chemical reaction networks is studied. In particular, we present a suitable entropy structure for weakly reversible reaction networks without detail balance condition.We show by deriving an entropy-entropy dissipation estimate that for any weakly reversible network each solution trajectory converges exponentially fast to the unique positive equilibrium with computable… Show more

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Cited by 28 publications
(52 citation statements)
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“…In our understanding, these sharp yet smooth profiles of l and p are the combined effect of the volume diffusion of L and P and the reversible reactions between L and l, which transfer a diffusive effect from the volume Ω onto the boundary Γ. In the context of reaction-diffusion systems with partially degenerate diffusion, such an indirect diffusion effect has been analytically shown first in [16] and for general linear weakly-reversible systems recently in [21]. Figure 4 plots the volume concentrations L and P corresponding to Figure 3.…”
Section: Numerical Discretisation and Qualitative Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In our understanding, these sharp yet smooth profiles of l and p are the combined effect of the volume diffusion of L and P and the reversible reactions between L and l, which transfer a diffusive effect from the volume Ω onto the boundary Γ. In the context of reaction-diffusion systems with partially degenerate diffusion, such an indirect diffusion effect has been analytically shown first in [16] and for general linear weakly-reversible systems recently in [21]. Figure 4 plots the volume concentrations L and P corresponding to Figure 3.…”
Section: Numerical Discretisation and Qualitative Discussionmentioning
confidence: 99%
“…Moreover, the dynamics of Fig. 1 forms a so-called weakly-reversible or complex balance reaction network, for which the convergence towards a steady state and well as the structure of the steady states are significantly more subtle than for detailed balance models, see the discussion of the numerical examples in Section 4 or also [21,26] and the references therein. In the following, we propose a continuum model of partial differential equations, which describe the reactions and the diffusion processes of these species both on the domain Ω and on its surface Γ.…”
Section: Introductionmentioning
confidence: 99%
“…In order to answer this question, it will be necessary to make comparisons with a full reaction-diffusion framework. This can be achieved by simulation studies (e.g., [30]) or a study of qualitative features of reaction-diffusion systems by exploiting recent work in [31], although a full analytical treatment remains challenging as the results in [31] only hold for first order reactions. Motivated by this observation, we wait for a sufficiently long period of time t 1 until the concentration of information molecules lies in a δ 1 -neighborhood of zero, which it will never leave since no new information molecules are produced.…”
Section: Numerical Resultsmentioning
confidence: 99%
“…This work can be seen as an extension of the corresponding result for linear reaction diffusion models [8], which has recently been extended to general mass action kinetics [9], bringing the theory for reaction diffusion models close to the best results on the global attractor conjecture [13] for ODE models without transport [3].…”
Section: Introductionmentioning
confidence: 93%
“…Two alternative proofs are presented. In the first one, relaxation in velocity space is separated from relaxation to chemical equilibrium and known results for the latter [8] are used. The second proof extends the proof in [8] by introducing reaction paths in species-velocity space.…”
Section: Introductionmentioning
confidence: 99%