Preprint
Sep 2026
Improving the efficiency of a Hyperpower method for approximating inverse matrices
In this manuscript, scalar norm-type accelerators are used for first time in order to increase the order of convergence of known iterative methods for solving the matrix equation $X^{-1}-A=0$, while decreasing the number of matrix-matrix products. Specifically, our proposed scheme upgrades the order of convergence in a...
A. Cordero, J. Torregrosa
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