Turing pattern theory on homogeneous and heterogeneous higher-order temporal network system

Abstract

Reaction-diffusion processes on networked systems have received mounting attention in the past two decades, and the corresponding theory of network dynamics has been continuously enriched with the advancement of network science. Recently, time-varying features and many-body interactions have been discovered on various and numerous real-world networks, such as biological and social systems, and the study of contemporary network science has gradually moved away from historically static network frameworks that are based on pairwise interactions. We aim to propose a general and rudimentary framework for Turing instability of reaction-diffusion processes on higher-order temporal networks. Firstly, we define a brand Laplacian to depict higher-order temporal diffusion behaviors on networks. Furthermore, the general form of higher-order temporal reaction-diffusion systems with frequency of oscillation is defined, and a time-independent and concise form is obtained by equivalent substitution and method of averaging. Next, we discuss the two cases of homogeneous and heterogeneous network systems and give equivalent conditions of Turing instability through linear stability analysis. Finally, in the numerical simulation part, we verify and discuss the validity of the above theoretical framework and study the effect of the frequency of oscillation of higher-order temporal networks on reaction-diffusion processes. Our study has revealed that higher-order temporal reaction-diffusion, which takes into account both time-varying feature and many-body interactions, can formulate innovative and diverse patterns. Moreover, there are significant differences between patterns in continuous space and patterns on traditional networks.

arXiv comment6 figures

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