74 citations · 122 across the 32 of their papers we have counts for
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math.NA2023
A multilinear Nyström algorithm for low-rank approximation of tensors in Tucker format
Alberto Bucci, Leonardo Robol
The Nyström method offers an effective way to obtain low-rank approximation of SPD matrices, and has been recently extended and analyzed to nonsymmetric matrices (leading to the ge…
math.NA2023
An efficient block rational Krylov solver for Sylvester equations with adaptive pole selection
Angelo A. Casulli, Leonardo Robol
We present an algorithm for the solution of Sylvester equations with right-hand side of low rank. The method is based on projection onto a block rational Krylov subspace, with two…
math.NA2023
A nested divide-and-conquer method for tensor Sylvester equations with positive definite hierarchically semiseparable coefficients
Stefano Massei, Leonardo Robol
Linear systems with a tensor product structure arise naturally when considering the discretization of Laplace type differential equations or, more generally, multidimensional opera…