Charge distribution and electric field effects on spatiotemporal patterns

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Abstract
Formation of spatial inhomogeneities in the electric field intensity and charge density arising due to an interaction of diffusion or migration with chemical reaction in an ionic version of the Brusselator are presented. The model involving spatial variations of electric field is compared to a conventional model assuming spatially homogeneous electric field. Predictions of the effects of electric field on spatial patterns differ. The existence of the field induced transitions between stationary and oscillatory states in a one-dimensional system and between striped and hexagonal patterns in a two-dimensional system is demonstrated.