Results 51 to 60 of about 206,470 (164)

Regularization of Inverse Problems

open access: yesCoRR, 2020
These lecture notes for a graduate class present the regularization theory for linear and nonlinear ill-posed operator equations in Hilbert spaces. Covered are the general framework of regularization methods and their analysis via spectral filters as well as the concrete examples of Tikhonov regularization, Landweber iteration, regularization by ...
openaire   +2 more sources

Inverse Eigenvalue Problem of Unitary Hessenberg Matrices

open access: yesDiscrete Dynamics in Nature and Society, 2009
Let H∈ℂn×n be an n×n unitary upper Hessenberg matrix whose subdiagonal elements are all positive, let Hk be the kth leading principal submatrix of H, and let H˜k be a modified submatrix of Hk.
Chunhong Wu, Linzhang Lu
doaj   +1 more source

On the inverse problem in optical coherence tomography. [PDF]

open access: yesSci Rep, 2023
Macdonald CM, Arridge SR, Munro PRT.
europepmc   +1 more source

Inverse median problems

open access: yesDiscrete Optimization, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rainer E. Burkard   +2 more
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Improved TV-CS Approaches for Inverse Scattering Problem

open access: yesThe Scientific World Journal, 2015
Total Variation and Compressive Sensing (TV-CS) techniques represent a very attractive approach to inverse scattering problems. In fact, if the unknown is piecewise constant and so has a sparse gradient, TV-CS approaches allow us to achieve optimal ...
M. T. Bevacqua, L. Di Donato
doaj   +1 more source

Inverse Coefficient Problem for Epidemiological Mean-Field Formulation

open access: yesMathematics
The paper proposes an approach to solving the inverse epidemiological problem, written in terms of the “mean-field” theory. Finding the coefficients of an epidemiological SIR mean-field model is reduced to solving an optimization problem, for the ...
Viktoriya Petrakova
doaj   +1 more source

ON AN INVERSE PROBLEM IN ELASTICITY

open access: yesDemonstratio Mathematica, 1982
Given are two functions f and g on a part \(\ell\) of the boundary of \(G\in {\mathbb{R}}^ 2\), it is to find the right hand side vector \(\eta\) of the second order elasticity system (with constant coefficients) for which there is a solution w, satisfying the conditions \(w=f\) and \(w_ n=g\) on \(\ell\) and to obtain this solution as well.
openaire   +2 more sources

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