Stavros Alchatzidis134 [email protected] Aristeidis Sotiras2 [email protected] Nikos Paragios134 [email protected] 1 Equipe GALEN, INRIA Saclay, Île-de-France, Orsay, France 2 Section of Biomedical Image Analysis,Department of Radiology, University of Pennsylvania, Pennsylvania, USA 3 Ecole des Ponts Paristech, Champs-sur-Marne, Île-de-France, France 4 Ecole Central...

THEMES : formes différentielles, champs de vecteurs, coordonnées complexes z et z, lemme de Poincaré, formule de Green-Riemann. Sources : Amar-Matheron [Analyse complexe] (Cassini), Berenstein-Gay [Complex variables] (GTM 125, Springer), Hénaut-Yger [Éléments de Géométrie] (Ellipses), Yger [Analyse complexe et distributions](Ellipses), Marco & al [Mathématiques L2] (Pearson Education). NOTA. Le...

In the context of a symmetric diffusion process X admitting a carré du champs operator, we give a precise description of the Dirichlet form of the process obtained by subjecting X to a drift transformation of gradient type. This description relies on boundary-type conditions restricting an associated reflecting Dirichlet form.

D.R. LEADLEY, R.J. NICHOLAS, D.K. MAUDE, J.C. PORTAL, J.J. HARRIS & C.T. FOXON Department of Physics, Warwick University, Coventry, CV4 7AL, UK Department of Physics, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, UK Laboratoire des Champs Magnetiques Intense, CNRS, F38042 Grenoble, Cedex 9, France Department of Electronics and Electrical Engineering, University College London, UK Departmen...

Résumé L’adénocarcinome pulmonaire est difficile à évoquer d’emblée devant les données anamnestiques et même radiologiques. Nous rapportons une observation d’une femme présentant une dyspnée avec la radiographie une opacité micronodulaire disséminée, confluente dans les deux champs pulmonaires avec des calcifications par endroit. L’histologie à travers les biopsies transbronchiques a permis de ...

King Abdullah University of Science & Tec 23955-6900 Thuwal, Saudi Arabia. E-mail: Institut de Sciences Analytiques (CNRS/EN Centre de RMN à Très Hauts Champs, 6910 Department of Chemical Engineering, Un 95616, USA. E-mail: [email protected] † Electronic supplementary information procedures, supporting characterization t prepared compounds are provided. See D ‡ These authors contributed equal...

Franck Bielsa, Rémy Battesti, Mathilde Fouché, Paul Berceau, Cécile Robilliard, Gilles Bailly, Sébastien Batut, Julien Mauchain, Marc Nardone, Oliver Portugall, Carlo Rizzo Laboratoire National des Champs Magnétiques Intenses (UPR 3228, CNRS-INSA-UJF-UPS), F-31400 Toulouse Cedex, France. Université de Toulouse, UPS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France. C...

We propose an algorithm to estimate the motion between two images. This algorithm is based on the nonlinear brightness constancy assumption. The number of unknowns is reduced by considering displacement fields that are piecewise linear with respect to each space variable, and the Jacobian matrix of the cost function to be minimized is assembled rapidly using a finite element method. Different r...

We consider further reduction of normal forms for nilpotent planar vector fields. We give a unique normal form for a special case of an open problem for the Takens–Bogdanov singularity.  2001 Académie des sciences/Éditions scientifiques et médicales Elsevier SAS Unicité des formes normales pour la singularité de Takens–Bogdanov dans un cas particulier Résumé. On étudie l’unicité des formes nor...