13 citations · 13 across the 2 of their papers we have counts for
2 papers
math.NA2021
Gamma-matrices: a new class of simultaneously diagonalizable matrices
Antonio Boccuto, Ivan Gerace, Valentina Giorgetti +1
In order to precondition Toeplitz systems, we present a new class of simultaneously diagonalizable real matrices, the Gamma-matrices, which include both symmetric circulant matrice…
math.NA2010★ 13 cited
The Padé iterations for the matrix sign function and their reciprocals are optimal
Federico Greco, Bruno Iannazzo, Federico Poloni
It is proved that among the rational iterations locally converging with order s>1 to the sign function, the Padé iterations and their reciprocals are the unique rationals with the…