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Extensions of theory of regular and weak regular splittings to singular matrices. (English) Zbl 1390.15012
Summary: Matrix splittings are useful in finding a solution of linear systems of equations, iteratively. In this note, we present some more convergence and comparison results for recently introduced matrix splittings called index-proper regular and index-proper weak regular splittings. We then apply to theory of double index-proper splittings.

##### MSC:
 15A09 Theory of matrix inversion and generalized inverses 65F15 Numerical computation of eigenvalues and eigenvectors of matrices 65F20 Numerical solutions to overdetermined systems, pseudoinverses
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##### References:
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