Results 21 to 30 of about 6,303,122 (262)

Iterative regularization for elliptic inverse problems

open access: yesComputers & Mathematics with Applications, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Akhtar A. Khan, Behzad Djafari Rouhani
openaire   +2 more sources

Remarks on the anisotropic Calder\'{o}n problem [PDF]

open access: yes, 2022
We show uniqueness results for the anisotropic Calder\'{o}n problem stated on transversally anisotropic manifolds. Moreover, we give a convexity result for the range of Dirichlet-to-Neumann maps on general Riemannian manifolds near the zero potential ...
Oksanen, Lauri   +5 more
core   +1 more source

Approximation of Bayesian inverse problems for PDEs [PDF]

open access: yes, 2010
Inverse problems are often ill posed, with solutions that depend sensitively on data. In any numerical approach to the solution of such problems, regularization of some form is needed to counteract the resulting instability.
Dashti, Massoumeh   +6 more
core   +1 more source

Solving an inverse elliptic coefficient problem by convex non-linear semidefinite programming [PDF]

open access: yes, 2021
Several applications in medical imaging and non-destructive material testing lead to inverse elliptic coefficient problems, where an unknown coefficient function in an elliptic PDE is to be determined from partial knowledge of its solutions.
Harrach, Bastian   +2 more
core   +1 more source

Solution of inverse problem for an elliptic equation by differential transform method

open access: yes, 2021
4th International Conference of Mathematical Sciences (ICMS) -- JUN 17-21, 2020 -- Maltepe Univ, ELECTR NETWORKIn this work, inverse problem for an elliptic equation is studied.
Dedeturk, Mutlu, Mutlu Dedeturk
core   +1 more source

The method of fundamental solutions for Helmholtz-type problems [PDF]

open access: yes, 2013
The purpose of this thesis is to extend the range of application of the method fundamental solutions (MFS) to solve direct and inverse geometric problems associated with two- or three-dimensional Helmholtz-type equations.
Bin-Mohsin, Bandar Abdullah
core   +5 more sources

Uniqueness results for an inverse periodic transmission problem [PDF]

open access: yes, 2004
The paper is devoted to the inverse problem of recovering a 2D periodic structure from scattered waves measured above and below the structure. We show that measurements corresponding to a finite number of refractive indices above or below the grating ...
Elschner, Johannes, Yamamoto, Masahiro
core   +1 more source

Existence of solution for a segmentation approach to the impedance tomography problem

open access: yesElectronic Journal of Differential Equations, 2020
In electrical impedance tomography (EIT), image reconstruction of the conductivity distribution of a body can be calculated using measured voltages at the boundary.
Renier Mendoza, Stephen Keeling
doaj   +3 more sources

Homogenization of one dimensional elliptic system [PDF]

open access: yesComputer Methods in Materials Science, 2008
The work presents problem of homogenization of one-dimenional mediums of periodic micrsotructure, and more precisely homogenization of one-dimensional elliptic system of layered periodic micrsotructure.
Paweł Mitkowski, Wojciech Mitkowski
doaj   +1 more source

On some geometric inverse problems for nonscalar elliptic systems [PDF]

open access: yesJournal of Differential Equations, 2020
In this paper, we consider several geometric inverse problems for linear elliptic systems. We prove uniqueness and stability results. In particular, we show the way that the observation depends on the perturbations of the domain. In some particular situations, this provides a strategy that could be used to compute approximations to the solution of the ...
Araujo, Raul K.C.   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy