Publications

• Article dans une revue

On optimal control of forward backward stochastic differential equations

Fouzia Baghery, Nabil Khelfallah, B. Mezerdi, Isabelle Turpin

We consider a control problem where the system is driven by a decoupled as well as a coupled forward-backward stochastic differential equation. We prove the existence of an optimal control in the class of relaxed controls, which are measure-valued processes, generalizing the usual strict controls.…

Afrika Matematika, 2017, 28 (7-8), pp.1075-1092. ⟨10.1007/s13370-017-0504-x⟩. ⟨hal-03149997⟩

• Poster de conférence

Fully discrete approximation of general nonlinear Sobolev equations

Fatiha Bekkouche, Serge Nicaise

LICMA'17, May 2017, Beyrouth, Lebanon. ⟨hal-03142737⟩

• Communication dans un congrès

Analyse de stabilité des systèmes frottants : Exploitation d'une technique de perturbation pour des études multi-paramétriques

Franck Massa, Isabelle Turpin, Thierry Tison

Cet article porte sur l’analyse de la stabilité des systèmes mécaniques frottants dans un contexte d’étude multi-paramétrique. Tout d’abord, l’objectif est de discuter de l’intégration d’une tech- nique de perturbation pour enrichir la base de projection utilisée lors de la résolution du problème…

13e colloque national en calcul des structures, Université Paris-Saclay, May 2017, Giens, Var, France. ⟨hal-01926727⟩

• Communication dans un congrès

Modeling of a PZT5A MEMS resonator disc partially metallized: Annular metallization

Ismail Naciri, Abdessamad Rguiti, Lahoucine Elmaimouni, Jean-Etienne Lefebvre, Faniry Emilson Ratolojanahary, Youssef Belkassmi, Salahddine Krit, Mohamed Rguiti, Tadeusz Gryba

An extension of the orthogonal polynomial approach in order to solve wave propagation in a MEMS resonator disc in the case of annular metallization is reported in the following paper. The disc is made from PZT5A and has been divided into two areas, the outer one with electrodes and the inner…

2017 International Conference on Engineering & MIS (ICEMIS), May 2017, Monastir, Tunisia. pp.1-8, ⟨10.1109/ICEMIS.2017.8272972⟩. ⟨hal-03564061⟩

• Communication dans un congrès

Dans la future société du coût marginal zéro, les imprimantes 3D rendront-elles serviles ?

Jean-Paul Becar, Jean Vareille

1 LAMAV, CNRS 2956, IUT Valenciennes, UVHC-Campus Mont Houy-59313 VALENCIENNES 2 Lab-STICC UMR 6285-Université de Brest, IUT de Brest-Morlaix, département GMP, CS 93837 29238 BREST CEDEX 3 THEMATIQUE – Energie-Environnement CNU 27 et CNU 60 RESUME-L'impression 3D constitue un sujet phare de…

Congrès National de la Recherche en IUT 2017 (CNRIUT2017), ADIUT, May 2017, Auxerre, France. ⟨hal-01691396⟩

• Article dans une revue

Stereolithography

Marion Dehurtevent, Lieven Robberecht, Jean-Christophe Hornez, Anthony Thuault, Etienne Deveaux, Pascal Béhin

Objectives : The aim of this study was to compare the physical and mechanical properties of stereolithography (SLA)- manufactured alumina ceramics of different composition to those of subtractive- manufactured ceramics and to produce suitable dental crown frameworks. Methods : The physical and…

Dental Materials, 2017, 33 (5), pp.477-485. ⟨10.1016/j.dental.2017.01.018⟩. ⟨hal-03079726⟩

• Article dans une revue

Canal surfaces as Bézier curves using mass points

Lionel Garnier, Jean-Paul Becar, Lucie Druoton

The paper aims to connect the Bézier curves domain to another known as the Minkowski–Lorentz space for CAGD purposes. The paper details these connections. It provides new algorithms for surface representations and surfaces joining. Some $G^1$-blends between canal surfaces illustrate the results…

Computer Aided Geometric Design, 2017, 54, pp.15 - 34. ⟨10.1016/j.cagd.2017.04.003⟩. ⟨hal-01562030⟩

• Article dans une revue

Multiplicity results in the non-coercive case for an elliptic problem with critical growth in the gradient

Colette De Coster, Louis Jeanjean

We consider the boundary value problem (Pλ) −∆u = λc(x)u + µ(x)|∇u| 2 + h(x), u ∈ H1 0 (Ω) ∩ L ∞(Ω), where Ω ⊂ R N , N ≥ 3 is a bounded domain with smooth boundary. It is assumed that c 0, c, h belong to L p (Ω) for some p > N. Also µ ∈ L∞(Ω) and µ ≥ µ1 > 0 for some µ1 ∈ R. It is known that…

Journal of Differential Equations, 2017, 262 (10), pp.5231 - 5270. ⟨10.1016/j.jde.2017.01.022⟩. ⟨hal-01755985⟩

• Communication dans un congrès

Une introduction aux points massiques

Lionel Garnier, Jean-Paul Becar, Lucie Druoton

L’article présente une série de résultats du domaine de la conception géométrique et fabrication assistée par ordinateur. Les courbes planes sont modélisées par des courbes Bézier rationnelles connues par la donnée de points massiques de contrôle. Le cas des coniques illustre ce mode de…

CNRIUT 2017, IUT, May 2017, AUXERRE, France. ⟨hal-02476691⟩

• Article dans une revue

An <em>hp</em>-FEM for Singularly Perturbed Transmission Problems

Serge Nicaise, Xenophontos Christos

We perform the analysis of the hp finite element approximation for the solution to singularly perturbed transmission problems, using Spectral Boundary Layer Meshes. In [12] it was shown that this method yields robust exponential convergence, as the degree p of the approximating polynomials is…