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Inverse Linear Difference Operators

Computational Mathematics and Mathematical Physics, 2017
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S. Abramov
semanticscholar   +3 more sources

Linear difference operators and acceleration methods

IMA Journal of Numerical Analysis, 2000
Let \(T:{\mathcal S}\to{\mathcal S}\) be an operator, where \({\mathcal S}\) is the set of all sequences of complex numbers. A numerical method for \((S_n)\in{\mathcal S}\) to calculate \(S_\infty\) is considered to satisfy the relation \(S_n\to S_\infty= a_nD_n\), where \((a_n)\) is unknown and \(D_n\neq 0\), \(n\in\mathbb{N}\), is an error estimate ...
Ana C. Matos
openaire   +2 more sources

Semigroups of difference operators in spectral analysis of linear differential operators

Functional Analysis and Its Applications, 1996
Let \(U\) denote a family of evolution operators for the equation \(x(t)= A(t)x(t)\), \(t\in\mathbb{R}\), where \(A(t): D(A(t))\subset X\to X\) is a family of closed linear operators that generate a correct Cauchy problem; \(X\) is a complex Banach space.
A. Baskakov
openaire   +2 more sources

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