Carleman estimates for global uniqueness, stability and numerical methods for coefficient inverse problems

MV Klibanov - Journal of Inverse and Ill-Posed Problems, 2013 - degruyter.com
Carleman estimates for global uniqueness, stability and numerical methods for coefficient
inverse problems Page 1 J. Inverse Ill-Posed Probl. 21 (2013), 477 – 560 DOI 10.1515/jip-2012-0072 …

Adaptivity with relaxation for ill-posed problems and global convergence for a coefficient inverse problem

L Beilina, MV Klibanov, MY Kokurin - Journal of Mathematical Sciences, 2010 - Springer
A new framework of the functional analysis is developed for the finite element adaptive
method (adaptivity) for the Tikhonov regularization functional for some ill-posed problems …

Blind backscattering experimental data collected in the field and an approximately globally convergent inverse algorithm

AV Kuzhuget, L Beilina, MV Klibanov… - Inverse …, 2012 - iopscience.iop.org
An approximately globally convergent numerical method for a 1D coefficient inverse
problem for a hyperbolic PDE is applied to image dielectric constants of targets from blind …

A modification of gradient Descent method for solving coefficient inverse problem for acoustics equations

D Klyuchinskiy, N Novikov, M Shishlenin - Computation, 2020 - mdpi.com
We investigate the mathematical model of the 2D acoustic waves propagation in a
heterogeneous domain. The hyperbolic first order system of partial differential equations is …

[PDF][PDF] Recovering of the reservoir conductivity by measurements on the surface using GPR DATA

MA Shishlenin, AT Shakhatova… - Eurasian Journal of …, 2023 - researchgate.net
In this article we consider a mathematical model of interpretation of a geoelectric section
based on georadar data. One of the reasons preventing the spread of GPR technologies is …

Picosecond scale experimental verification of a globally convergent algorithm for a coefficient inverse problem

MV Klibanov, MA Fiddy, L Beilina, N Pantong… - Inverse …, 2010 - iopscience.iop.org
A globally convergent algorithm by the first and third authors for a 3D hyperbolic coefficient
inverse problem is verified on experimental data measured in the picosecond scale regime …

Numerics of acoustical 2D tomography based on the conservation laws

SI Kabanikhin, DV Klyuchinskiy, NS Novikov… - Journal of Inverse and …, 2020 - degruyter.com
We investigate the mathematical modeling of the 2D acoustic waves propagation, based on
the conservation laws. The hyperbolic first-order system of partial differential equations is …

Lumped Element Method Based Conductivity Reconstruction Algorithm for Localization Using Symmetric Discrete Operators on Coarse Meshes

Z Sari, M Klincsik, P Odry, V Tadic, A Toth, Z Vizvari - Symmetry, 2023 - mdpi.com
The inverse conductivity problem in electrical impedance tomography involves the solving of
a nonlinear and under-determined system of equations. This paper presents a new …

[HTML][HTML] Globally convergent and adaptive finite element methods in imaging of buried objects from experimental backscattering radar measurements

L Beilina, NT Thanh, MV Klibanov… - Journal of Computational …, 2015 - Elsevier
We consider a two-stage numerical procedure for imaging of objects buried in dry sand
using time-dependent backscattering experimental radar measurements. These …

Reconstruction of dielectrics from experimental data via a hybrid globally convergent/adaptive inverse algorithm

L Beilina, MV Klibanov - Inverse Problems, 2010 - iopscience.iop.org
The validity of the synthesis of a globally convergent numerical method with the adaptive
FEM technique for a coefficient inverse problem is verified on time-resolved experimental …