Aurelien Citrain defended his PhD thesis entitled: Hybrid finite element methods for seismic wave simulation: coupling of Discontinuous Galerkin and Spectral Element discretizations To solve wave equations in heterogeneous media with finite elements with a reasonable numerical cost, we couple the Discontinuous Galerkin method (DGm) with Spectral Elements method (SEm). We use hybrid meshes composed …
Category: News
Dec 07
PhD defense – Elvira Shishenina
Elvira Shishenina defended his PhD thesis entitled: Space-Time Discretization of Elasto-Acoustic Wave Equation in Polynomial Trefftz-DG Bases Discontinuous Finite Element Methods (DG FEM) have proven flexibility and accuracy for solving wave problems in complex media. However, they require a large number of degrees of freedom, which increases the corresponding computational cost compared with that of …
Nov 29
PhD defense – Florian Faucher
Florian Faucher defended his PhD thesis entitled: Contributions to Seismic Full Waveform Inversion for Time Harmonic Wave Equations: Stability Estimates, Convergence Analysis, Numerical Experiments involving Large Scale Optimization Algorithms In this project, we investigate the recovery of subsurface Earth parameters. We consider the seismic imaging as a large scale iterative minimization problem, and deploy the …
Oct 06
Quatrième workshop de DIP, l’action stratégique INRIA TOTAL
Quatrième workshop de DIP, l’action stratégique INRIA TOTAL Houston, les 10 et 11 octobre 2016 Total building, 1201 Louisiana Street 77002, Houston, TX Organisateurs: Hélène Barucq , Henri Calandra
Mar 09
2 eme édition des Journées ONDES du Sud Ouest (JOSo)
DIP is involved in the “2eme édition des Journées ONDES du Sud-Ouest (JOSo)” qui se tiendra du 9 au 11 Mars 2016 – à Pau
Dec 15
PhD defense – Marie Bonnasse-Gahot
Marie Bonnasse-Gahot defended his PhD thesis entitled: High order discontinuous Galerkin methods for time-harmonic elastodynamics The main objective of this work is the design of an efficient numerical strategy to solve the Helmholtz equation in highly heterogeneous media. We propose a methodology based on coarse meshes and high order polynomials together with a special quadrature …
Dec 11
PhD defense – Théophile Chaumont Frelet
Théophile Chaumont Frelet defended his PhD thesis entitled: Finite element approximation of Helmholtz problems with application to seismic wave propagation The main objective of this work is the design of an efficient numerical strategy to solve the Helmholtz equation in highly heterogeneous media. We propose a methodology based on coarse meshes and high order polynomials …
Jun 22
Troisième workshop de DIP, l’action stratégique INRIA TOTAL
Troisième workshop de DIP, l’action stratégique INRIA TOTAL Pau, les 22 et 23 juin 2015 Salle de Réunion de l’IPRA, RdC Université de Pau et des Pays de l’Adour Organisatrice: Hélène Barucq
Dec 12
PhD defense – Lionel Boillot
Lionel Boillot defended his PhD thesis entitled: Contributions to the mathematical modeling and to the parallel algorithmic for the optimization of an elastic wave propagator in anisotropic media
Sep 22
2nd Workshop Franco-Russe
Second Russian-French Conference on Computational Geophysics Novosibirsk, September 22 – 24, 2014
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