3 citations · 3 across the 3 of their papers we have counts for
3 papers
math.NA2021
On circulant and skew-circulant splitting algorithms for (continuous) Sylvester equations
Zhongyun Liu, Fang Zhang, Carla Ferreira +1
We present a circulant and skew-circulant splitting (CSCS) iterative method for solving large sparse continuous Sylvester equations , where the coefficient matrices $A…
math.NA2012★ 3 cited
Real dqds for the nonsymmetric tridiagonal eigenvalue problem
Carla Ferreira, Beresford Parlett
We present a new transform, triple dqds, to help to compute the eigenvalues of a real tridiagonal matrix C using real arithmetic. The algorithm uses the real dqds transform to shif…
math.NA2012
Structure-preserving Schur methods for computing square roots of real skew-Hamiltonian matrices
Zhongyun Liu, Yulin Zhang, Carla Ferreira +1
Our contribution is two-folded. First, starting from the known fact that every real skew-Hamiltonian matrix has a real Hamiltonian square root, we give a complete characterization…