Abstract
This paper is devoted to the regularization in the process of approximation of values of unbounded operators in Banach spaces. More precisely, we consider the approximations of unbounded generators of C0-semigroups and integrated semigroups. We consider M. M. Lavrentiev's method. Some iterative procedures are also investigated. It is shown that in general Banach spaces the approximation of the values of unbounded operators converges in strong sense. The presentation is given in the abstract framework of the discrete approximation scheme, which includes finite element methods, finite difference schemes and projection methods.
Keywords.: Abstract differential equations; Banach spaces; C0-semigroups; integrated semigroups; Trotter–Kato theorem; discretization methods; discrete semigroups; stability of difference schemes; Lavrentiev's method; regularization procedure; iterative methods; ill-posed problems
Received: 2011-05-05
Revised: 2011-05-11
Published Online: 2011-09-26
Published in Print: 2011-November
© de Gruyter 2011
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Schlagwörter für diesen Artikel
Abstract differential equations;
Banach spaces;
C0-semigroups;
integrated semigroups;
Trotter–Kato theorem;
discretization methods;
discrete semigroups;
stability of difference schemes;
Lavrentiev's method;
regularization procedure;
iterative methods;
ill-posed problems
Artikel in diesem Heft
- An inverse method for bounded error parameter identification
- An inverse problem for the wave equation
- Shrinkage rules for variational minimization problems and applications to analytical ultracentrifugation
- Reconstruction of initial Tsunami waveforms by a truncated SVD method
- Uniqueness theorems from partial information of the potential on a graph
- On the approximations of derivatives of integrated semigroups. II
- Singular value decomposition and its application to numerical inversion for ray transforms in 2D vector tomography
- Uniqueness in inverse scattering of elastic waves by three-dimensional polyhedral diffraction gratings
- Asymptotic inversion formulas in 3D vector field tomography for different geometries