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Pattern formation of a nonlocal, anisotropic interaction model

Accepted version
Peer-reviewed

Type

Article

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Authors

Burger, M 
Düring, B 
Kreusser, LM 
Markowich, PA 
Schönlieb, CB 

Abstract

We consider a class of interacting particle models with anisotropic, repulsive-attractive interaction forces whose orientations depend on an underlying tensor field. An example of this class of models is the so-called Kücken-Champod model describing the formation of fingerprint patterns. This class of models can be regarded as a generalization of a gradient flow of a nonlocal interaction potential which has a local repulsion and a long-range attraction structure. In contrast to isotropic interaction models the anisotropic forces in our class of models cannot be derived from a potential. The underlying tensor field introduces an anisotropy leading to complex patterns which do not occur in isotropic models. This anisotropy is characterized by one parameter in the model. We study the variation of this parameter, describing the transition between the isotropic and the anisotropic model, analytically and numerically. We analyze the equilibria of the corresponding mean-field partial differential equation and investigate pattern formation numerically in two dimensions by studying the dependence of the parameters in the model on the resulting patterns.

Description

Keywords

Nonlocal interactions, pattern formation, dynamical systems

Journal Title

Mathematical Models and Methods in Applied Sciences

Conference Name

Journal ISSN

0218-2025
1793-6314

Volume Title

28

Publisher

World Scientific Publishing

Rights

All rights reserved
Sponsorship
Engineering and Physical Sciences Research Council (EP/N014588/1)
Engineering and Physical Sciences Research Council (EP/M00483X/1)
Engineering and Physical Sciences Research Council (EP/J009539/1)
Alan Turing Institute (unknown)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (691070)
Leverhulme Trust (RPG-2015-250)
Engineering and Physical Sciences Research Council (EP/H023348/1)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (777826)
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