Results 111 to 120 of about 208,745 (278)

A Tikhonov-type regularization for Brézis pseudomonotone equilibrium problems in Banach spaces [PDF]

open access: bronze, 2021
Ouayl Chadli   +53 more
openalex   +1 more source

Convergence rates of general regularization methods for statistical inverse problems and applications [PDF]

open access: yes
During the past the convergence analysis for linear statistical inverse problems has mainly focused on spectral cut-off and Tikhonov type estimators. Spectral cut-off estimators achieve minimax rates for a broad range of smoothness classes and operators,
Bissantz, Nicolai   +3 more
core  

A modified Tikhonov regularization method

open access: yesJournal of Computational and Applied Mathematics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang, Xiao-Juan, Wang, Li
openaire   +2 more sources

Identification of source term for the ill-posed Rayleigh–Stokes problem by Tikhonov regularization method

open access: yesAdvances in Differential Equations, 2019
In this paper, we study an inverse source problem for the Rayleigh–Stokes problem for a generalized second-grade fluid with a fractional derivative model. The problem is severely ill-posed in the sense of Hadamard. To regularize the unstable solution, we
T. Binh   +4 more
semanticscholar   +1 more source

Wavelet-Accelerated Tikhonov-Phillips Regularization with Applications [PDF]

open access: yes, 1997
Many technical and physical problems can be mathematically modeled by operator equations (1) of the first kind, $$Ax = y$$ , where x is the searched-for information under observed data y. We mention only a few typical examples: medical imaging, see e.g. [16, 20], and inverse scattering problems, see e.g. [6].
Rieder, A., Maaß, P.
openaire   +2 more sources

Sensitivity and reliability analysis to MSBAS regularization for the estimation of surface deformation over a mine

open access: yesGeocarto International
To systematically and thoroughly analyze the sensitivity and reliability of the MSBAS regularization for the estimation of surface deformation over a mine in combination with an application example, this study processed 101 Sentinel-1A/B SAR images ...
Qiuxiang Tao   +5 more
doaj   +1 more source

On a Level-Set Method for Ill-Posed Problems with Piecewise Nonconstant Coefficients

open access: yesJournal of Applied Mathematics, 2013
We investigate a level-set-type method for solving ill-posed problems, with the assumption that the solutions are piecewise, but not necessarily constant functions with unknown level sets and unknown level values.
A. De Cezaro
doaj   +1 more source

A PROPOSAL FOR REGULARIZED INVERSION FOR AN ILL-CONDITIONED DECONVOLUTION OPERATOR

open access: yesCT&F Ciencia, Tecnología & Futuro, 2013
From the inverse problem theory aspect, deconvolution can be understood as the linear inversion of an ill-posed and ill-conditioned problem. The ill-conditioned property of the deconvolution operator make the solution of inverse problem sensitive to ...
Herling Gonzalez   +2 more
doaj  

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