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math.NA2026
Component-wise accurate fixed point iterations for computing the square root of a singular M-matrix
Dario Andrea Bini, Bruno Iannazzo, Beatrice Meini +1
We analyze two fixed-point iterations for computing the principal square root of an M-matrix . Although these iterations, with customary initialization, converge sublinearly whe…
math.NA2026
Component-wise accurate computation of the square root of an M-matrix
Dario A. Bini, Bruno Iannazzo, Beatrice Meini +1
Component-wise accurate algorithms for computing the principal square root of an M-matrix are designed in terms of triplet representations. A triplet representation of an M-matrix…