The evolution of an iterative matrix of order 2 in a two-element polata
J. J. Włodek (1971)
Applicationes Mathematicae
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J. J. Włodek (1971)
Applicationes Mathematicae
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Dušan Mikičić, Dejan Popović (1982)
Publications de l'Institut Mathématique
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Jakub Kierzkowski (2015)
Open Mathematics
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We present new iterative methods for solving the Sylvester equation belonging to the class of SOR-like methods, based on the SOR (Successive Over-Relaxation) method for solving linear systems. We discuss convergence characteristics of the methods. Numerical experimentation results are included, illustrating the theoretical results and some other noteworthy properties of the Methods.
Jan Zítko (1998)
Applications of Mathematics
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In this paper, our attention is concentrated on the GMRES method for the solution of the system of linear algebraic equations with a nonsymmetric matrix. We perform pre-iterations before starting GMRES and put for the initial approximation in GMRES. We derive an upper estimate for the norm of the error vector in dependence on the th powers of eigenvalues of the matrix . Further we study under what eigenvalues lay-out this upper estimate is the best one. The estimate shows and...
Liu, Qingbing, Chen, Guoliang (2010)
Mathematical Problems in Engineering
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Daniela Calvetti, Bryan Lewis, Lothar Reichel (2001)
International Journal of Applied Mathematics and Computer Science
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Many iterative methods for the solution of linear discrete ill-posed problems with a large matrix require the computed approximate solutions to be orthogonal to the null space of the matrix. We show that when the desired solution is not smooth, it may be possible to determine meaningful approximate solutions with less computational work by not imposing this orthogonality condition.
Slobodan Lakić (1997)
Applications of Mathematics
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This paper is motivated by the paper [3], where an iterative method for the computation of a matrix inverse square root was considered. We suggest a generalization of the method in [3]. We give some sufficient conditions for the convergence of this method, and its numerical stabillity property is investigated. Numerical examples showing that sometimes our generalization converges faster than the methods in [3] are presented.
Zahari Zlatev, Krassimir Georgiev (2013)
Open Mathematics
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Many problems arising in different fields of science and engineering can be reduced, by applying some appropriate discretization, either to a system of linear algebraic equations or to a sequence of such systems. The solution of a system of linear algebraic equations is very often the most time-consuming part of the computational process during the treatment of the original problem, because these systems can be very large (containing up to many millions of equations). It is, therefore,...