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- Ruben Budelli, Juan-Manuel Torres, E. Catsigeras, H. Enrich
- Biological cybernetics
- 1991

The behavior of two pacemakers simulated by integrate and fire oscillators reciprocally connected by synapses is studied. The activation of each synapse produces a sudden potential shift in the post-synaptic neuron. Two sorts of behaviour may occur when at least one synapse is excitatory. Phase-locking occurs for almost every set of parameters, and given… (More)

We study topological and ergodic properties of some almost hyperbolic diffeomorphisms on two dimensional manifolds. Under generic conditions, diffeomorphisms obtained from Anosov by an isotopy pushing together the stable and unstable manifolds to be tangent at a fixed point, are conjugate to Anosov. For a finite codimension subset at the boundary of Anosov… (More)

- R. Budelli, J. Torres, E. Catsigeras, H. Enrich
- Biological Cybernetics
- 1991

The behavior of two pacemakers simulated by integrate and fire oscillators reciprocally connected by synapses is studied. The activation of each synapse produces a sudden potential shift in the post-synaptic neuron. Two sorts of behaviour may occur when at least one synapse is excitatory. Phase-locking occurs for almost every set of parameters, and given… (More)

For continuous maps on a compact manifold M , particularly for those that do not preserve the Lebesgue measure m, we define the observable invariant measures as a generalization of the Sinai-RuelleBowen (SRB) measures. We prove that any continuous map has observable measures and characterize those that are SRB in terms of the observability. We also define… (More)

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