derniers depôts

Ajouté le 25/05/2018

In this paper, we present a global computer science approach to deal with parallel computations. The proposed approach consists in managing at the same level either multithreading or distributed strategies, whatever the computation may be. The integration of the concept is held in a Java framework which proposes both, a pure object-oriented paradigm and, convenient libraries to deal with threads management and communications schemes.

Ajouté le 25/05/2018

Direct bonding is a well-known process. However in order to use this process in spatial instrument fabrication the mechanical resistance needs to be quantified. In order to improve bonded strength, optimal parameters of the process are found by studying the influence of annealing time, temperature and roughness which are studied using three experimental methods: double shear, cleavage and wedge tests. Those parameters are chosen thanks to the appearance of time/temperature equivalence.

Ajouté le 25/05/2018

This paper analyses the effect of a pay-as-you-go pension system on the evolution of capital and pollution, and on the efficiency of an environmental versus health policy. In an overlapping generations model (OLG), we introduce endogenous longevity that depends on pollution and health expenditures. Global dynamics may display multiple balanced growth paths (BGP). We show that by discouraging savings, a policy that promotes the pension system enlarges the environmental poverty trap.

Ajouté le 25/05/2018

We show that Hida theory extends to p-adic families of Jacobi forms, including Λ-adic theta lifts of classical modular forms, used in [LN18].

Ajouté le 25/05/2018

We relate p-adic families of Jacobi forms to Big Heegner points constructed by B. Howard, in the spirit of the Gross-Kohnen-Zagier theorem. We view this as a GL(2) instance of a p-adic Kudla program.

Ajouté le 25/05/2018

Based on epidemiological evidence, we consider an economy where agents differ through their ability to procreate. Households with impaired fertility may incur health expenditures to increase their chances of parenthood. This health heterogeneity generates welfare inequalities that deserve to be ruled out.

Ajouté le 25/05/2018

We solve a linear-quadratic model of a spatio-temporal economy using a polluting one-input technology. Space is continuous and heterogenous: locations differ in productivity, nature self-cleaning technology and environmental awareness. The unique link between locations is transboundary pollution which is modelled as a PDE diffusion equation. The spatio-temporal functional is quadratic in local consumption and linear in pollution.

Ajouté le 25/05/2018

We illustrate here as the combination of high-order maximum-quantum (MaxQ) and Diffusion-Ordered SpectroscopY (DOSY) NMR experiments in a 3D layout allows superior resolution for crowded NMR spectra. Non-uniform sampling (NUS) allows compressing the experimental time effectively to reasonable durations. Because diffusion effects were encoded within multiple-quantum co-herences, increased sensitivity to magnetic field gradients is observed, requiring compensation for convection effects.

Ajouté le 24/05/2018

This work deals with parallel optimization of expensive objective functions which are modeled as sample realizations of Gaussian processes. The study is formalized as a Bayesian optimization problem, or continuous multi-armed bandit problem, where a batch of q > 0 arms is pulled in parallel at each iteration. Several algorithms have been developed for choosing batches by trading off exploitation and exploration.

Ajouté le 24/05/2018

Soit F un corps de fonction sur Fq, A l'anneau des fonctions régulières hors d'une place ∞ et p un idéal premier de A. Nous développons les théories de Hida et Coleman pour les formes modulaires de Drinfeld de rang r qui sont de pente finie pour l'opérateur de Hecke Up convenablement défini. En particulier, nous construisons une variété de Hecke pour le groupe général GL(r) qui est localement finie sur un espace de poids non-noethérien en caractéristique p.

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