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Pattern formation in the classical and fractional Schnakenberg equations is studied to understand the nonlocal effects of anomalous diffusion. Starting with linear stability analysis, we find that if the activator and inhibitor have the…

Pattern Formation and Solitons · Physics 2021-06-21 Hatim Khudhair , Yanzhi Zhang , Nobuyuki Fukawa

The RF stabilization of tearing modes with current condensation has the potential to increase stabilization efficiency and loosen power localization requirements. Such benefits stem from the cooperative feedback between the RF deposition…

Plasma Physics · Physics 2020-07-15 Suying Jin , Nathaniel J. Fisch , Allan H. Reiman

The purpose of the current paper is to unveil the key mechanism which is responsible for the occurrence of {\it Turing-type instability} for a non-local Fisher-KPP type model. In particular, we prove that the solution of the considered…

Analysis of PDEs · Mathematics 2020-07-17 Nikos I. Kavallaris , Evangelos A. Latos

In this paper, we introduce a novel approach to study reaction-diffusion systems -- dynamic transition theory approach developed in Ma and Wang 2015. This approach generalizes Turing's classical result (linear stability analysis) on pattern…

Dynamical Systems · Mathematics 2018-11-27 Xige Yang , Dapeng Li

In this paper, we report on the generation and propagation of traveling pulses in a homogeneous network of diffusively coupled, excitable, slow-fast dynamical neurons. The spatially extended system is modelled using the nearest neighbor…

Pattern Formation and Solitons · Physics 2024-06-19 Arnab Mondal , Argha Mondal , M. A. Aziz-Alaoui , Ranjit Kumar Upadhyay , Sanjeev Kumar Sharma , Chris G. Antonopoulos

In this work, we consider diffusion-based molecular communication timing channels. Three different timing channels are presented based on three different modulation techniques, i.e., i) modulation of the release timing of the information…

Information Theory · Computer Science 2015-12-08 Nariman Farsad , Weisi Guo , Chan-Byoung Chae , Andrew Eckford

This paper investigates the conditions for the stability and emergence of patterns in a new three-component reaction-diffusion system. The system describes the coexistence and interaction of water reservoirs, vegetation, and bushfire…

Analysis of PDEs · Mathematics 2026-04-14 Serena Dipierro , Enrico Valdinoci

We numerically study Turing patterns (TPs) on two-dimensional surfaces with a square boundary in ${\bf R}^3$ using a surface model for polymerized membranes. The variables used to describe the membranes correspond to two distinct degrees of…

Soft Condensed Matter · Physics 2025-02-24 F. Kato , H. Koibuchi , E. Bretin , C. Carvalho , R. Denis , S. Masnou , M. Nakayama , S. Tasaki , T. Uchimoto

A systematic introduction to nonequilibrium thermodynamics of dynamical instabilities is considered for an open nonlinear system beyond conventional Turing pattern in presence of cross diffusion. An altered condition of Turing instability…

Adaptation and Self-Organizing Systems · Physics 2021-11-05 Premashis Kumar , Gautam Gangopadhyay

The population model of Busenberg and Travis is a paradigmatic model in ecology and tumour modelling due to its ability to capture interesting phenomena like the segregation of populations. Its singular mathematical structure enforces the…

Analysis of PDEs · Mathematics 2024-01-29 Gonzalo Galiano , Víctor González-Tabernero

In this paper, we propose a new probability distribution function which accurately describes turbulence-induced fading under a wide range of turbulence conditions. The proposed model, termed Double Generalized Gamma (Double GG), is based on…

Mathematical Physics · Physics 2015-05-26 Mohammadreza Aminikashani , Murat Uysal , Mohsen Kavehrad

Preferential diffusion plays a critical role in the evolution of lean premixed hydrogen flames, influencing flame surface corrugation and overall flame behavior. Simulating such flames with tabulated chemistry (TC) methods remains…

Many animals have patterned fur, feathers, or scales, such as the stripes of a zebra. Turing models, or reaction-diffusion systems, are a class of mathematical models of interacting species that have been successfully used to generate…

Biological Physics · Physics 2023-12-04 Michael F. Staddon

Analytically tracking patterns emerging from a small amplitude Turing instability to large amplitude remains a challenge as no general theory exists. In this paper, we consider a three component reaction-diffusion system with one of its…

Dynamical Systems · Mathematics 2023-11-06 Christopher Brown , Gianne Derks , Peter van Heijster , David J. B. Lloyd

The spontaneous emergence of coherent structures from chaotic backgrounds is a hallmark of active biological swarms. We investigate this self-organization by simulating an ensemble of polar chiral active agents that couple locally via a…

Computational Physics · Physics 2026-01-05 Magnus F Ivarsen

The response of cells during spreading and motility is dictated by several multi-physics events, which are triggered by extracellular cues and occur at different time-scales. For this sake, it is not completely appropriate to provide a cell…

Soft Condensed Matter · Physics 2020-11-26 M. Serpelloni , M. Arricca , C. Bonanno , A. Salvadori

For cellular functions like division and polarization, protein pattern formation driven by NTPase cycles is a central spatial control strategy. Operating far from equilibrium, no general theory links microscopic reaction networks and…

Biological Physics · Physics 2024-10-01 Henrik Weyer , Tobias A. Roth , Erwin Frey

We consider processes that coincide with a given diffusion process except on the boundaries of a finite collection of domains. The behavior on each of the boundaries is asymmetric: the process is much more likely to enter the interior of…

Probability · Mathematics 2020-03-18 Mark Freidlin , Leonid Koralov

A novel route to instabilities and turbulence in fluid and plasma flows is presented in kinetic Vlasov-Maxwell model. New kind of flow instabilities is shown to arise due to the availability of new kinetic energy sources which are absent in…

Plasma Physics · Physics 2015-06-19 Dhurjati Prasad Datta , Sudip Sen

Turing patterns play a fundamental role in morphogenesis and population dynamics, encoding key information about the underlying biological mechanisms. Yet, traditional inverse problems have largely relied on non-biological data such as…

Analysis of PDEs · Mathematics 2025-09-10 Yuhan Li , Hongyu Liu , Catharine W. K. Lo