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@proceedings{1406909, author = {Pospíšil, Zdeněk}, booktitle = {Differential Equations and Applications, Brno, Czech Republic, September 4-7, 2017}, keywords = {difference equations; diffusion; Turing phenomenon; mathematical modelling; historiography}, language = {eng}, title = {Turing-like phenomenon on a discrete space-time}, year = {2017} }
TY - CONF ID - 1406909 AU - Pospíšil, Zdeněk PY - 2017 TI - Turing-like phenomenon on a discrete space-time KW - difference equations KW - diffusion KW - Turing phenomenon KW - mathematical modelling KW - historiography N2 - We consider the coupled recurrences (difference equations) possessing an asymptotically stable equilibrium. A particular choice of the nonlinear functions appearing as their parameters enables one to interpret these equations as a model of a two-component chemical reaction, of two populations interaction, of two ideologies competition, and the like. Let us consider further a simple graph. A process of the reaction described by the previously mentioned recurrences in a node followed by diffusion of components (dispersion of populations) on the graph, i. e. a random move of a particle (individual) from a node to a neighbour one, can be described by certain discrete system. If the adjacency matrix of the graph is symmetric, then the system possesses a spatially homogeneous equilibrium. The aims of the contribution consist in demonstration that this equilibrium need not to be stable and in presenting conditions for the instability. That is, in describing a discrete analogy of the well known diffusion-driven or Turing instability. The research was motivated by attempts to model a diffusion dynamics of religious ideas and behavior forms. ER -
POSPÍŠIL, Zdeněk. Turing-like phenomenon on a discrete space-time. In \textit{Differential Equations and Applications, Brno, Czech Republic, September 4-7, 2017}. 2017.
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