The Confessions of the Average: Statistics and Natural Order in Nineteenth-Century French Economic Thought

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Les modèles économiques: perspectives méthodologiques et historiques

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Augustin Cournot: Modelling Economics

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Stochastic integral equations applied to telecommunications traffic without delay

AbstractModern telecommunication techniques case the problem of traffic handling in the framework of fairly general networks, as applied to traffic without delay but with virtually arbitrary service-time distributions. In this paper we use stochastic integral equations to deal with the case involving the most general input process and lost calls. For this purpose, Fortet's equation, unsolved so far in the general case, is solved to analyze the single trunk group model. The stationary case is then treated as a special case. Finally we study networks which satisfy a certain assumption of symmetry. The same general stochastic assumptions are maintained throughout the paper

The topological structure of scaling limits of large planar maps

We discuss scaling limits of large bipartite planar maps. If p is a fixed integer strictly greater than 1, we consider a random planar map M(n) which is uniformly distributed over the set of all 2p-angulations with n faces. Then, at least along a suitable subsequence, the metric space M(n) equipped with the graph distance rescaled by the factor n to the power -1/4 converges in distribution as n tends to infinity towards a limiting random compact metric space, in the sense of the Gromov-Hausdorff distance. We prove that the topology of the limiting space is uniquely determined independently of p, and that this space can be obtained as the quotient of the Continuum Random Tree for an equivalence relation which is defined from Brownian labels attached to the vertices. We also verify that the Hausdorff dimension of the limit is almost surely equal to 4.Comment: 45 pages Second version with minor modification

Utilisation de la Réalité Virtuelle en neuropsychologie clinique

Dans cet article, les principales applications des techniques de Réalité Virtuelle en clinique neuropsychologique sont examinées. Il s\u27agit, d\u27une part, de l\u27aide à l\u27évaluation des troubles cognitifs et comportementaux secondaires aux lésions du système nerveux central et, d\u27autre part, des perspectives ouvertes dans le champ de la prise en charge rééducative de ces déficits. Ces données cliniques et expérimentales permettent de discuter l\u27intérêt et les limites de l\u27utilisation de ces techniques

Cenozoic seismic stratigraphy and tectonic evolution of the Algarve margin (offshore Portugal, southwestern Iberian Peninsula)

The Cenozoic seismic stratigraphy and tectonic evolution of the Algarve margin (southwestern border of the Iberian Peninsula) are documented from multichannel seismic reflection data, isochron and time-structure maps.http://www.sciencedirect.com/science/article/B6V6M-4KJV3F0-1/1/141771fd1c5ee441b6f226a499be5e2