02 32 95 xx yy


  • Research topics/Thèmes de recherche: Analysis, PDE, Modelling, numerical analysis, scientific calculus, numerical simulation, inverse problems, medical imaging, image processing, waves modelling and simulation.
  • Collaborations: ENSTA Paris, CEA (LIST, Non destructive control), INRIA (M3DISIM)
  • Teaching/Enseignement: Génie Mathématique et STPI.
  • Ph. D. thesis/Thèse: in Mathematics, 2015, INRIA POEMS, Paris ENSTA UMA (A.S. Bonnet Ben Dhia, S. Fliss).
  • Administrative activities/Activité administrative : membre du comité de pilotage INSA Rouen HRS4R (2017-...).


2017  Ph. D. proposal :
Image segmentation and observer strategy for elastography

Ph. D. supervisor : C. Le Guyader
(avec A. Tonnoir, collaboration with INRIA M3DISIM Paris Saclay (P. Moireau))


Publications/Papers

  1.  A Rellich type theorem for the Helmholtz equation in conical domain, A.-S. Bonnet-Ben Dhia, S. Fliss, C. Hazard, A. Tonnoir. C. R. Acad. Sci. Paris Sér. Math. 354 (1), pp. 27-32, 2016.
  2. Dirichlet to Neumann operator for diffraction problems in stratified anisotropic acoustic waveguide, A. Tonnoir. C. R. Acad. Sci. Paris Sér. Math. 354 (4), pp. 383-387, 2016.
  3. Iterative methods for scattering problems in isotropic or anisotropic elastic waveguides, V. Baronian, A.-S. Bonnet-Ben Dhia, S. Fliss, A. Tonnoir. Wave Motion 64, pp. 13-33, 2016.
  4. A domain decomposition method for solving scattering problems in anisotropic infinite media, A.-S. Bonnet-Ben Dhia, S. Fliss, A. Tonnoir. En préparation.
  5. Back and forth algorithm for recovering the initial state of the wave equation in unbounded domains, S. Fliss, S. Impériale, P. Moireau, K.Ramdani, A. Tonnoir. En préparation.

 

Proceedings

  1. New perspectives offered by overlaps to design transparent boundary conditions in waveguides. V. Baronian, A.-S. Bonnet-Ben Dhia, S. Fliss, A. Tonnoir.  Proc. of the 12th International Conf. on Math. and Numerical Aspects of Wave Propagation, KIT, Karlsruhe, 2015. pp. 282-283.
  2. Exact transparent boundary conditions for diffraction problems in some anisotropic plates. V. Baronian, A.-S. Bonnet-Ben Dhia, S. Fliss, A. Tonnoir. European Research Network, Eighth Meeting, Gregynog, 2014. pp. 127-130.
  3. New transparent boundary condition for time harmonic acoustic diffraction problem in anisotropic media. A.-S. Bonnet-Ben Dhia, S. Fliss, A. Tonnoir.  Proc. of the 11th International Conf. on Math. and Numerical Aspects of Wave Propagation, Gammarth, Tunis, 2013. pp. 307-308. 
  4. Iterative method to solve scattering problems in elastic waveguide. V. Baronian, A.-S. Bonnet-Ben Dhia, S. Fliss, A. Tonnoir. European Research Network, Seventh Meeting, Oléron, 2012.

Talks/Communications

  • Waves 2017 (abstracts), Minneapolis, USA.
    - Analysis of an observers strategy for initial state reconstruction in unbounded domains (Fliss/ Impériale/
    Moireau/ *Tonnoir)
    - The half-space matching method for the diffraction by polygonal scatterers (Bonnet-Ben Dhia/ Fliss/
    *Tjandrawidjaja/ Tonnoir)
    - Transparent boundary conditions for general waveguide problems (Bonnet Ben-Dhia/ *Fliss/ Tonnoir)
  • CANUM 2016 (Mini-symposium "Aspects numériques de la contrôlabilité des EDP et problèmes inverses''), Obernai, France (2016).
  •  Waves 2015 (12th international conference on mathematical and numerical aspects of waves), Karlsruhe, Allemagne (2015).
  • Semaine d'analyse numérique de Besançon, Besançon, France (2015).
  • Workshop on transparent boundary conditions and resonances in elastic media, Göttingen, Allemagne (2014)
  • 8th GDR conference on wave propagation in complex media for quantitative and non destructive evaluation, Gregynog, Angleterre (2014).
  • Waves 2013 (11th international conference on mathematical and numerical aspects of waves), Tunis, Tunisie (2013).
  • Poster :  Forum STIC, Paris-Saclay (2013).
  •  7th GDR conference on wave propagation in complex media for quantitative and non destructive evaluation, Oléron, France (2012).
  • Poster : Forum DIGITEO, École Polytechnique, Palaiseau (2012).