Accueil Publications Curriculum Vitae Enseignement Liens

 

Florian Méhats

Publications classified by subject (for the same list of publications in reverse chronological order, click here)

 

Numerical methods for stiff problem

Micro-macro schemes for kinetic equations including boundary layers (with M. Lemou). Preprint

A boundary matching  micro/macro decomposition for kinetic equations (with M. Lemou)C. R. Acad. Sci. Paris, Ser. I 349 (2011) 479–484.. Preprint

An asymptotic preserving scheme for the Schrödinger equation in the semiclassical limit (with P. Degond & S. Gallego), C. R. Math. Acad. Sci. Paris 345 (2007), no. 9, 531--536. Preprint

 

Gravitation models

Stable ground states and self-similar blow-up solutions for the gravitational Vlasov-Manev system (with M. Lemou and C. Rigault). Preprint

► Orbital stability of spherical galactic models (with M. Lemou and P. Raphaël), arXiv:1007.4095, to appear in Inventiones Math. Preprint

Stable ground states for the gravitational Vlasov-Manev system (with M. Lemou and C. Rigault). Preprint

A new variational approach to the stability of gravitational systems (with M. Lemou and P. Raphaël), Comm. Math. Phys. 302 (2011), 161–224. Preprint

Evaporation law in kinetic gravitational systems described by simplified Landau models (with P. Carcaud, P.-H. Chavanis and M. Lemou), , Discrete Contin. Dyn. Syst. B 14 (2010), no. 3, 907934.  Preprint

A new variational approach to the stability of gravitational systems (with M. Lemou and P. Raphaël), C. R. Math. Acad. Sci. Paris 347  (2009),  no. 15--16, 979--984.

Stable ground states for the relativistic gravitational Vlasov-Poisson system (with M. Lemou and P. Raphaël), Comm. Partial Diff. Eq. 34 (2009), no. 7, 703-721. Preprint

Stable self-similar blow up dynamics for the three dimensional relativistic gravitational Vlasov-Poisson system (with M. Lemou and P. Raphaël), J. Amer. Math. Soc. 21 (2008), 1019-1063. Preprint

Structure of the linearized gravitational Vlasov-Poisson system close to a polytropic ground state (with M. Lemou and P. Raphaël), SIAM J. Math. Anal. 39 (2008), no. 6, 1711-1739. Preprint

Uniqueness of the critical mass blow up solution for the four dimensional gravitational Vlasov-Poisson system (with M. Lemou and P. Raphaël), Ann. I. H. Poincaré - AN 24 (2007) 825--833. Preprint

On the orbital stability of the ground states and the singularity formation for the gravitational Vlasov Poisson system (with M. Lemou & P. Raphaël), Arch. Ration. Mech. Anal. 189 (2008), no. 3, 425-468. Preprint

On the orbital stability of the ground states and the singularity formation for the gravitational Vlasov Poisson system (with M. Lemou and P. Raphaël), C. R. Math. Acad. Sci. Paris 341 (2005), no. 4, 269-274. Preprint

 

Strong partial confinement for Schrödinger-Poisson or NLS

Second order averaging for the nonlinear Schrödinger equation with strong anisotropic potential (with N. Ben Abdallah, Y. Cai and F. Castella), Kinet. Relat. Models, 4 (2011), no. 4, 831-856. Preprint

► The Schrödinger Poisson system on the sphere (with P. Gérard), SIAM J. Math. Anal. 43 (2011), no.3, 1232–1268. Preprint 

An effective mass theorem for the bidimensional electron gas in a strong magnetic field (with F. Delebecque-Fendt), Comm. Math. Phys. 292 (2009), no. 3, 829-870. Preprint

The strongly confined Schrödinger-Poisson system for the transport of electrons in a nanowire (with N. Ben Abdallah, F. Castella and F. Delebecque-Fendt), SIAM J. Appl. Math. 69 (2009), no. 4, 1162-1173. Preprint

Time averaging for the strongly confined nonlinear Schrödinger equation, using almost periodicity (with N. Ben Abdallah and F. Castella), J. Diff. Eq. 245, (2008), no 1, 154-200. Preprint

The nonlinear Schrödinger equation with strong anisotropic harmonic potential (with N. Ben Abdallah, C. Schmeiser & R. M. Weishäupl), SIAM J. Math. Anal., 37 (2005), no. 1, 189-199. Preprint

Analysis of a quantum subband model for the transport of partially confined charged particles,  Monatsh. Math. 147 (2006), 43-73. Preprint

Adiabatic approximation of the Schrödinger-Poisson system with a partial confinement (with N. Ben Abdallah & O. Pinaud), SIAM J. Math. Anal. 36 (2005), no. 3, 986-1013. Preprint

 

Quantum hydrodynamics, quantum drift-diffusion

A problem of moment realizability in quantum statistical physics (with O. Pinaud), Kinet. Relat. Models, 4 (2011), no. 4, 1143-1158. Preprint

An inverse problem in quantum statistical physics (with O. Pinaud), J. Stat. Phys. 140 (2010), no. 3, 565--602. Preprint

Quantum drift-diffusion modeling of spin transport in nanostructures (with L. Barletti), J. Math. Phys. 51 (2010), 053304. Preprint

Derivation of viscous correction terms for the isothermal quantum Euler model (with S. Brull), Z. Angew. Math. Mech. 90 (2010), no. 3, 219 – 230. Preprint

On Quantum Hydrodynamic and Quantum Energy Transport Models (with P. Degond & S. Gallego), Commun. Math. Sci. 5 (2007), no. 4, 887-908. Preprint

Quantum hydrodynamic and diffusion models derived from the entropy principle (with P. Degond, S. Gallego and C. Ringhofer), lecture notes of a course by P. Degond at Cetraro, september 2006.

Isothermal quantum hydrodynamics: derivation, asymptotic analysis and simulation (with P. Degond & S. Gallego), SIAM Multiscale Model. Simul.  6 (2007), no. 1, 246-272. Preprint

An entropic Quantum Drift-Diffusion model for electron transport in resonant tunneling diodes (with P. Degond & S. Gallego), J. Comput. Phys. 221 (2007), 226-249. Preprint

On quantum extensions to classical Spherical Harmonics Expansion / Fokker-Planck models (with J.-P. Bourgade, P. Degond & C. Ringhofer), J. Math. Phys. 47 (2006), no. 4, 043302. Preprint

Entropic discretization of a quantum drift-diffusion model (with S. Gallego), SIAM J. Numer. Anal. 43 (2005), no. 5, 1828-1849. Preprint

Numerical approximation of a quantum drift-diffusion model (with S. Gallego), C. R. Acad. Sci. Paris, Ser. I 339 (2004), 519-524. Preprint

Quantum Energy-Transport and Drift-Diffusion models (with P. Degond & C. Ringhofer), J. Stat. Phys. 118 (2005), no. 3-4, 625-665. Preprint

Quantum hydrodynamic model derived from the entropy principle (with P. Degond & C. Ringhofer), Contemp. Math. 371 (2005), 107-131. Preprint

 

Hybrid classical-quantum models : subband models

Adiabatic quantum fluid transport models (with N. Ben Abdallah & C. Negulescu), Comm. Math. Sci.  4 (2006), no. 3, 621--650. Preprint

Diffusive transport of partially quantized particles: Existence, uniqueness and long time behaviour (with N. Ben Abdallah and N. Vauchelet), Proc. of the Edinburgh Math. Soc. 49 (2006), 513--549. Preprint

Global existence of classical solutions for a Vlasov-Schrödinger-Poisson system (with N. Ben Abdallah & G. Quinio), Indiana Univ. Math. J. 55 (2006), no. 4, 1423--1448. Preprint

Semiclassical Analysis of the Schrödinger equation with a partially confining potential (with N. Ben Abdallah), J. Math. Pures Appl. 84 (2005), 580-614. Preprint

A note on the long time behavior for the Drift-Diffusion-Poisson system  (with N. Ben Abdallah & N. Vauchelet), C. R. Acad. Sci. Paris, Ser. I 339 (2004), 683-688. Preprint

On a Vlasov-Schrödinger-Poisson model (with N. Ben Abdallah), Comm. Partial Differential Equations 29 (2004), no. 1-2, 173-206. Preprint

Analysis of a Drift-Diffusion-Schrödinger-Poisson model (with N. Ben Abdallah & N. Vauchelet), C. R. Acad. Sci. Paris Sér. I  335 (2002), 1007-1012. Preprint

 

Open quantum systems and other topics related to Schrödinger

An asymptotic preserving scheme for the Schrödinger equation in the semiclassical limit (with P. Degond & S. Gallego), C. R. Math. Acad. Sci. Paris 345 (2007), no. 9, 531--536. Preprint

On an open transient Schrödinger-Poisson system (with N. Ben Abdallah & O. Pinaud), Math. Models Methods Appl. Sci. 15 (2005), 667--688. Preprint

 

Plasma models

On singular perturbation problems for the nonlinear Poisson equation (with A. Ambroso & P.-A. Raviart), Asymptot. Anal. 25 (2001), no. 1, 39-91. Preprint

The Child-Langmuir asymptotics for magnetized flows (with N. Ben Abdallah & P. Degond), Asymptot. Anal. 20 (1999), no. 2, 97-132. Preprint

Mathematical models for magnetic insulation (with N. Ben Abdallah & P. Degond), Phys. Plasmas 5 (1998), no. 5, 1522-1534. Preprint

The Child-Langmuir asymptotics applied to a bipolar diode, Math. Methods Appl. Sci. 21 (1998), no. 12, 1115-1148. Preprint

 

An oblique derivative boundary value problem

Convergence of a numerical scheme for a nonlinear oblique derivative boundary value problem, M2AN: Math. Model Numer. Anal. 36 (2002), no. 6, 1111--1132. Preprint

A nonlinear oblique derivative boundary value problem for the heat equation. Part 2: Singular selfsimilar solutions (with J.-M. Roquejoffre), Ann. Inst. H. Poincaré Anal. Non Linéaire 16 (1999), no. 6, 691-724. Preprint

A nonlinear oblique derivative boundary value problem for the heat equation. Part 1: Basic results (with J.-M. Roquejoffre), Ann. Inst. H. Poincaré Anal. Non Linéaire 16 (1999), no. 2, 221-253. Preprint

Un problème d'évolution avec condition aux limites non linéaire (with J.-M. Roquejoffre), C. R. Acad. Sci. Paris Sér. I Math. 321 (1995), no. 10, 1319-1322.

 

Habilitation à diriger des recherches et Thèse de doctorat

Etude mathématique et analyse asymptotique de modèles quantiques : transport, confinement et collisions, soutenue le 23 novembre 2004 à l'Université Toulouse 3.

Etudes de problèmes aux limites en Physique du Transport des Particules Chargées, soutenue le 9 décembre 1997 à l'Ecole polytechnique.

 

Proceedings

A Drift-Diffusion subband model for the double-gate MOSFET (with N. Ben Abdallah, P. Pietra & N. Vauchelet), 5th IEEE Conference on Nanotechnology, Nagoya, July 11-15, 2005.

Numerical discretization of a fully Quantum Drift-Diffusion model (with P. Degond & S. Gallego), Computational Fluid and Solid Mechanics 2005, K. J. Bathe Ed., Elsevier. Proceedings Third MIT Conference on Fluid and Solid Mechanics, June 14-17, 2005.

Simulation of 2D quantum transport in ultrashort DG-MOSFETs : a fast algorithm using subbands (with N. Ben Abdallah, E. Polizzi, M. Mouis), Simulation of Semiconductor Processes and Devices, 2003. SISPAD 2003. International Conference on 3-5 Sept. 2003, 267-270.