A priori estimates of attraction basins for nonlinear least squares, with application to Helmholtz seismic inverse problem
H Barucq, G Chavent, F Faucher - Inverse Problems, 2019 - iopscience.iop.org
In this paper, we provide an a priori optimizability analysis of nonlinear least squares
problems that are solved by local optimization algorithms. We define attraction …
problems that are solved by local optimization algorithms. We define attraction …
Mathematical modeling and simulation of waves in conducting poroelastic media using HDG method
RC Meyer - 2021 - theses.hal.science
We consider the time-harmonic waves propagation in conducting poroelastic media. In
poroelastic materials, whichare composed of an elastic solid frame and pores filled with …
poroelastic materials, whichare composed of an elastic solid frame and pores filled with …
[PDF][PDF] A priori estimates of attraction basins for velocity model reconstruction by time-harmonic Full Waveform Inversion and Data Space Reflectivity formulation
H Barucq, H Calandra, G Chavent, F Faucher - 2019 - hal.science
Determination of background velocity by Full Waveform Inversion is known to be hampered
by the local minima of the data misfit caused by the phase shifts associated to background …
by the local minima of the data misfit caused by the phase shifts associated to background …
An effective numerical strategy for retrieving all characteristic parameters of an elastic scatterer from its FFP measurements
A new computational strategy is proposed for determining all elastic scatterer characteristics
including the shape, the material properties (Lamé coefficients and density), and the location …
including the shape, the material properties (Lamé coefficients and density), and the location …
Analytic solutions and transmission eigenvalues in isotropic poroelasticity for bounded domain, scattering of obstacles and fluid-solid interaction problems in 2D
H Barucq, J Diaz, RC Meyer, H Pham - 2019 - inria.hal.science
In this report, we construct analytical solutions and study numerically the well-posedness of
several problems concerning the isotropic poroelastic equation in axisymmetry …
several problems concerning the isotropic poroelastic equation in axisymmetry …