Publications

• Thèse

Algebraic-trigonometric Pythagorean hodograph curves for solving planar and spatial interpolation problems and their use for visualizing dental information within 3D tomographic volumes, Les courbes algébriques trigonométriques à hodographe pythagorien pour résoudre des problèmes d'interpolation deux et trois-dimensionnels et leur utilisation pour visualiser les informations dentaires dans des volumes tomographiques 3D

Cindy González

Interpolation problems have been widely studied in Computer Aided Geometric Design (CAGD). They consist in the construction of curves and surfaces that pass exactly through a given data set, such as point clouds, tangents, curvatures, lines/planes, etc. In general, these curves and surfaces are…, Les problèmes d'interpolation ont été largement étudiés dans la Conception Géométrique Assistée par Ordinateur. Ces problèmes consistent en la construction de courbes et de surfaces qui passent exactement par un ensemble de données. Dans ce cadre, l'objectif principal de cette thèse est…

Algebraic Geometry [math.AG]. Université de Valenciennes et du Hainaut-Cambresis, 2018. English. ⟨NNT : 2018VALE0001⟩. ⟨tel-01789081⟩

• Communication dans un congrès

Dental information along curved slices

Cindy González, Ma. I. Pérez, Marianela Lentini, D. Ríos, Gudrun Albrecht, Marco Paluszny

Within the family of ruled surfaces, the developable curved slices have a special property: they may be flattened without deformation. In this paper we introduce a technique to visualize information encoded in a 3D tomographic volume along such a curved slice. This property is deemed useful in…

Computing Conference 2017, Jul 2017, London, United Kingdom. ⟨10.1109/SAI.2017.8252279⟩. ⟨hal-03149552⟩

• Poster de conférence

Synthèse et caractérisation structurale de nouveaux phosphates de type -CrPO4 : MMg2Fe(PO4)3 (M = Ba, Sr)

Saleck Ahmed Ould, Assani Abderrazzak, Saadi Mohamed, Cyrille Albert-Mercier, Claudine Follet-Houttemane, Ammari Lahcen El

Mardi des Chercheurs 2018 (MdC 2018), 2018, Arenberg Creative Mine, France. ⟨hal-04309872⟩

• Article dans une revue

Stabilization of a Drude/Vacuum Model

Serge Nicaise

We analyze the stability of a dispersive medium immersed in vacuum (with Silver–Müller boundary condition in the exterior boundary) or vice versa. The dispersive medium model corresponds to the coupling between Maxwell’s system and a first order ordinary differential equation (of parabolic type).…

Zeitschrift für Analysis und ihre Anwendungen, 2018, 37 (3), p. 349-375. ⟨10.4171/ZAA/1618⟩. ⟨hal-03164101⟩

• Article dans une revue

Properties of the nearly kähler S3×S3

Marilena Moruz, Luc Vrancken

We show how the metric, the almost complex structure and the almost product structure of the homogeneous nearly Kahler S3 × S3 can be recovered from a submersion π : S3 × S3 × S3 → S3 × S3. On S3 × S3 × S3 we have the maps obtained either by changing two coordinates, or by cyclic permutations. We…

Publications de l'Institut Mathématique., 2018, 103 (117), pp.147-158. ⟨10.2298/PIM1817147M⟩. ⟨hal-03184977⟩

• Article dans une revue

New System to Harvest Road Energy Using Piezoelectric Polymers

Chouaib Ennawaoui, Houda Lifi, Abdelowahed Hajjaji, Az-Eddine Azim, Abdessamad Elballouti, Mohamed Rguiti

Green energy is regarded as an essential element for energy production, sustainable development, technological, industrial, and governmental innovations in the world. An increase in the green energy consumption often provides a positive impact on economic growth and social development. A great deal…

Sensor letters, 2018, 16 (1), pp.41-47. ⟨10.1166/sl.2018.3932⟩. ⟨hal-03477106⟩

• Article dans une revue

Well-posedness and stability results for nonlinear abstract evolution equations with time delays

Serge Nicaise, Cristina Pignotti

We consider abstract evolution equations with a nonlinear term depending on the state and on delayed states. We show that, if the C0 -semigroup describing the linear part of the model is exponentially stable, then the whole system retains this property under some Lipschitz continuity assumptions on…

Journal of Evolution Equations, 2018, 18 (2), pp.947-971. ⟨10.1007/s00028-018-0427-5⟩. ⟨hal-01955977⟩

• Article dans une revue

Estimates of oscillatory integrals with stationary phase and singular amplitude: Applications to propagation features for dispersive equations

Florent Dewez

In this paper, we study time‐asymptotic propagation phenomena for a class of dispersive equations on the line by exploiting precise estimates of oscillatory integrals. We propose first an extension of the van der Corput Lemma to the case of phases which may have a stationary point of real order and…

Mathematical News / Mathematische Nachrichten, 2018, 291 (5-6), pp.793-826. ⟨10.1002/mana.201600218⟩. ⟨hal-03142498⟩

• Communication dans un congrès

Usage des points massiques et des courbes de Bézier pour la modélisation des cubiques

Karine Serier, Jean-Paul Becar, Lionel Garnier

Cet article étend l'étude des points singuliers et des points d'inflexion des courbes rationnelles cubiques en s'ins-pirant de la méthode proposée par M. Sakai dans le cadre des points massiques. L'intérêt des points massiques permet de représenter une boucle c'est à dire…

GTMG 2018, ENSAM, 2018, AIX EN PROVENCE, France. ⟨hal-02508926⟩

• Article dans une revue

Sublinearity of the number of semi-infinite branches for geometric random trees

David Coupier

The present paper addresses the following question: for a geometric random tree in R-2, how many semi-infinite branches cross the circle C-r centered at the origin and with a large radius r? We develop a method ensuring that the expectation of the number X-r of these semi-infinite branches is o (r…

Electronic Journal of Probability, 2018, 23, ⟨10.1214/17-EJP115⟩. ⟨hal-03227549⟩