Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Mehrenberger, Michel"'
Autor:
Bourne, Emily, Munschy, Yann, Grandgirard, Virginie, Mehrenberger, Michel, Ghendrih, Philippe
Publikováno v:
In Journal of Computational Physics 1 September 2023 488
Autor:
Bernier, Joackim, Mehrenberger, Michel
The asymptotic behavior of the solutions of the second order linearized Vlasov-Poisson system around homogeneous equilibria is derived. It provides a fine description of some nonlinear and multidimensional phenomena such as the existence of Best freq
Externí odkaz:
http://arxiv.org/abs/1903.08374
We are interested in developing a numerical method for capturing stationary sheaths, that a plasma forms in contact with a metallic wall. This work is based on a bi-species (ion/electron) Vlasov-Amp{\`e}re model proposed in [3]. The main question add
Externí odkaz:
http://arxiv.org/abs/1802.05852
We construct a high order discontinuous Galerkin method for solving general hyperbolic systems of conservation laws. The method is CFL-less, matrix-free, has the complexity of an explicit scheme and can be of arbitrary order in space and time. The co
Externí odkaz:
http://arxiv.org/abs/1802.04590
Autor:
Bouzat, Nicolas, Bressan, Camilla, Grandgirard, Virginie, Latu, Guillaume, Mehrenberger, Michel
In magnetically confined plasmas used in Tokamak, turbulence is responsible for specific transport that limits the performance of this kind of reactors. Gyrokinetic simulations are able to capture ion and electron turbulence that give rise to heat lo
Externí odkaz:
http://arxiv.org/abs/1712.02201
We present a high order scheme for approximating kinetic equations with stiff relaxation. The objective is to provide efficient methods for solving the underlying system of conservation laws. The construction is based on several ingredients: (i) a hi
Externí odkaz:
http://arxiv.org/abs/1612.09422
Autor:
Yang, Chang, Mehrenberger, Michel
Publikováno v:
In Journal of Computational Physics 1 December 2021 446
Autor:
Mehrenberger, Michel
Dans une première partie, on rassemble plusieurs résultats en théorie du contrôle autour des inégalités d'Ingham, généralisations de l'égalité de Parseval, qui inter- viennent pour montrer l'observabilité, la contrôlabilité
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00735678
http://tel.archives-ouvertes.fr/docs/00/73/56/78/PDF/hdrMehren.pdf
http://tel.archives-ouvertes.fr/docs/00/73/56/78/PDF/hdrMehren.pdf
We consider the Vlasov-Poisson equation in a Hamiltonian framework and derive new time splitting methods based on the decomposition of the Hamiltonian functional between the kinetic and electric energy. Assuming smoothness of the solutions, we study
Externí odkaz:
http://arxiv.org/abs/1510.01841
Autor:
Mehrenberger, Michel
La premiere partie est consacree a l'etude d'inegalites d'observabilite, qui interviennent en theorie du controle.On donne ainsi un theoreme abstrait qui permet de deduire l'observabilite d'un systeme par perturbation compacte, avec une condition aff
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00008254
http://tel.archives-ouvertes.fr/docs/00/04/76/35/PDF/tel-00008254.pdf
http://tel.archives-ouvertes.fr/docs/00/04/76/35/PDF/tel-00008254.pdf