Samira El Yacoubi

Learn More
The aim of this paper is to present an original modelling tool for biogeographical systems. This software named LUCAS (LUcifer Cellular Automata Simulator) has been developed within the European programme LUCIFER (Land Use Change Interactions with Fire in MeditERrranean landscapes). LUCAS constitutes general software, based on coupling local dynamics(More)
The emergence of new species is one of the trickiest issues of evolutionary biology. We propose a cellular automata model to investigate the possibility that speciation proceeds in sympatry, focusing on the importance of the structure of the landscape on the likelihood of spe-ciation. The conditions for speciation are shown to be limited whatever the(More)
The control of chaotic systems implies inducing an unpredictable system to follow a desired trajectory using the smallest " force ". In low-dimensional continuous systems, one method is that of reconstructing the tangent space, so that the control may be concentrated on the most expanding directions. This scheme is hard to follow for high-dimensional(More)
We investigate the mechanism of pinching synchronization (complete synchronization for a fraction of system) for cellular automata, considered as prototypes of discrete systems with unpredictable behaviour (finite-distance chaoticity). The pinching synchronization threshold is related to this chaoticity. Some control problems may be reformulated as targeted(More)