Abstract
The Procrustes problem for orthogonal Kronecker products is considered. Given matrices A ∈ ℝn2×k2, T ∈ ℝn2×n2, n ≥ k, we minimize the Frobenius norm ∥T(Q ⊗ Q) - A ∥ for all orthogonal Stiefel matrices Q ∈ ℝn×k, QT Q = Ik. We introduce and implement left and right relaxation methods for minimization. Numerical results for the data in general and Kronecker product form are given to illustrate convergence of both methods.
Original language | English (US) |
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Pages (from-to) | 148-163 |
Number of pages | 16 |
Journal | SIAM Journal on Scientific Computing |
Volume | 25 |
Issue number | 1 |
DOIs | |
State | Published - 2003 |
Keywords
- Kronecker products
- Procrustes problem
- Relaxation methods
- Stiefel matrices
ASJC Scopus subject areas
- Computational Mathematics
- Applied Mathematics