Publicaciones

• Article dans une revue

On actions and strict actions in homological categories

Manfred Hartl, Bruno Loiseau

Let $G$ be an object of a finitely cocomplete homological category $\mathbb C$. We study actions of $G$ on objects $A$ of $\mathbb C$ (defined by Bourn and Janelidze as being algebras over a certain monad $\mathbb T_G$), with two objectives: investigating to which extent actions can be described in...

Theory and Applications of Categories, 2013, 27 (15), pp.347-392. ⟨hal-03149616⟩

• Pré-publication, Document de travail

Approximation of the two-dimensional Dirichlet problem by one-dimensional continuous and discrete problems on one-dimensional networks

Maryse Bourlard-Jospin, Serge Nicaise, Juliette Venel

We show that the solution of the two-dimensional Dirichlet problem set in a plane domain is the limit of the solutions of similar problems set on a sequence of one-dimensional networks as their size goes to zero. Roughly speaking this means that a membrane can be seen as the limit of rackets made...

2013. ⟨hal-00834307⟩

• Pré-publication, Document de travail

Linear Multifractional Stable Motion: fine path properties

Antoine Ayache, Julien Hamonier

Linear Multifractional Stable Motion (LMSM), denoted by $\{Y(t):t\in\R\}$, has been introduced by Stoev and Taqqu in 2004-2005, by substituting to the constant Hurst parameter of a classical Linear Fractional Stable Motion (LFSM), a deterministic function $H(\cdot)$ depending on the time variable $...

2013. ⟨hal-00811622⟩

• Article dans une revue

Classes de Steinitz dʼextensions galoisiennes à groupe de Galois de centre non trivial

Bouchaïb Sodaïgui

Let k be a number field and Cl(k) its class group. Let Γ be a finite group and |Γ| its order. Let R(k, Γ) (resp. R m(k, Γ)) be the subset of Cl(k) consisting of those classes which are realizable as Steinitz classes of Galois extensions (resp. tamely ramified Galois extensions) of k with Galois...

Journal of Number Theory, 2013, 133 (2), pp.611-619. ⟨10.1016/j.jnt.2012.08.015⟩. ⟨hal-03187571⟩

• Article dans une revue

On Some Holomorphic Cohomological Equations

Aziz El Kacimi Alaoui

Let Σ be a non compact Riemann surface and γ:Σ⟶Σ an automorphism acting freely and properly such that the quotient M = Σ/γ is a non compact Riemann surface. Using the fact that Σ and M are Stein manifolds, we prove that, for any holomorphic function g:Σ⟶C and any λ∈C , there exists a holomorphic...

Results in mathematics = Resultate der Mathematik, 2013, 63 (1-2), pp.329-334. ⟨10.1007/s00025-011-0201-2⟩. ⟨hal-03148580⟩

• Poster de conférence

La méthode DARE, acquisition de connaissances et de compétences en 3 étapes : Découvrir, Appliquer et Résoudre

Jean-Paul Becar, Jean-Charles Canonne, Laurent Vermeiren, Fabrice Robert

6e atelier Innov@TICE, Jan 2013, Aulnoy-Lez-Valenciennes, France. ⟨hal-03132613⟩

• Chapitre d'ouvrage

Céramiques piézoélectriques

Christian Courtois

Gilbert Fantozzi; Jean-Claude Niepce; Guillaume Bonnefont. Les céramiques industrielles : propriétés, mise en forme et applications, Dunod, 2013, 9782100577392. ⟨hal-03079485⟩

• Communication dans un congrès

Promenade dans le jardin de Ron Goldman

Jean-Charles Canonne

Journée “Exposons-Nous”, Université de Valenciennes et du Hainaut-Cambrésis, Jan 2013, Valenciennes, France. ⟨hal-03132908⟩

• Article dans une revue

Stabilization by switching time–delay

Kaïs Ammari, Serge Nicaise, Cristina Pignotti

In this paper we consider some stabilization problems for the wave equation with switching time-delay. We prove exponential stability results for appropriate damping coefficients. The proof of the main results is based on D'Alembert formula, observability inequality and some energy estimates....

Asymptotic Analysis, 2013, 83 (3), pp.263-283. ⟨10.3233/ASY-131163⟩. ⟨hal-03138782⟩

• Article dans une revue

Mechanical Properties of Porosity-Free Beta Tricalcium Phosphate (<i>β</i>-TCP) Ceramic by Sharp and Spherical Indentations

Didier Chicot, Arnaud Tricoteaux, J. Lesage, Anne Leriche, Michel Descamps, E. Rguiti-Constantin

Instrumented indentation has been developed for determining the mechanical properties of materials but an accurate determination of these properties requires attention on contact stiffness analysis, indentation size effect, elastic modulus mode of calculation, role of stress distribution around the...

New Journal of Glass and Ceramics, 2013, 03 (01), pp.16-28. ⟨10.4236/njgc.2013.31004⟩. ⟨hal-03586273⟩