Positive semi-definite matrices as sums of squares
✍ Scribed by Dragomir Ž. Djoković
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 288 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0024-3795
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract We consider Hamiltonian matrices obtained by means of symmetric and positive definite matrices and analyse some perturbations that maintain the eigenvalues on the imaginary axis of the complex plane. To obtain this result we prove for such matrices the existence of a diagonal form or, a
## Abstract We present necessary and sufficient conditions under which the symmetrized product of two __n__ ×__n__ positive definite Hermitian matrices is still a positive definite matrix (Part I, Sections 2 and 3). These results are then applied to prove the validity of the strong maximum principl