This paper proves that contractive ordinary differential equation systems remain contractive when diffusion is added. Thus, diffusive instabilities, in the sense of the Turing phenomenon, cannot arise for such systems. An important biochemical system is shown to satisfy the required conditions.
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http://dx.doi.org/10.1016/j.na.2013.01.001 | DOI Listing |
Commun Math Phys
January 2021
Département de Mathématiques, Université de Fribourg, 23 Chemin du Musée, 1700 Fribourg, Switzerland.
Uniform integer-valued Lipschitz functions on a domain of size of the triangular lattice are shown to have variations of order . The level lines of such functions form a loop (2) model on the edges of the hexagonal lattice with edge-weight one. An infinite-volume Gibbs measure for the loop (2) model is constructed as a thermodynamic limit and is shown to be unique.
View Article and Find Full Text PDFEntropy (Basel)
April 2020
Faculty of Mathematics and Computer Science, Banacha 22, 90-235 Łódź, Poland.
The purpose of this paper is to elucidate the interrelations between three essentially different concepts: solenoids, topological entropy, and Hausdorff dimension. For this purpose, we describe the dynamics of a solenoid by topological entropy-like quantities and investigate the relations between them. For L-Lipschitz solenoids and locally λ - expanding solenoids, we show that the topological entropy and fractal dimensions are closely related.
View Article and Find Full Text PDFJ Inequal Appl
October 2017
Mathematical Department of Teacher Education Institute, DaQing Normal University, DaQing, 163712 P.R. China.
The main purpose of this paper is to investigate the strong convergence and exponential stability in mean square of the exponential Euler method to semi-linear stochastic delay differential equations (SLSDDEs). It is proved that the exponential Euler approximation solution converges to the analytic solution with the strong order [Formula: see text] to SLSDDEs. On the one hand, the classical stability theorem to SLSDDEs is given by the Lyapunov functions.
View Article and Find Full Text PDFNonlinear Anal Theory Methods Appl
May 2013
Department of Mathematics, Rutgers University, Piscataway, NJ 08854-8019 USA.
This paper proves that contractive ordinary differential equation systems remain contractive when diffusion is added. Thus, diffusive instabilities, in the sense of the Turing phenomenon, cannot arise for such systems. An important biochemical system is shown to satisfy the required conditions.
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