𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Products of diagonalizable matrices

✍ Scribed by J.D. Botha


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
553 KB
Volume
273
Category
Article
ISSN
0024-3795

No coin nor oath required. For personal study only.

✦ Synopsis


Let 0: denote a field such that char(F) ~ 2. It is shown that every square matrix over 0: is expressible as a product of two diagonalizable matrices, except when 0: = GF(3), in which case three diagonalizable matrices are needed in general. Partial results for the case where char(F) = 2 is also presented. Finally, the extent to which the nullities of these factors can be prescribed is also investigated.


πŸ“œ SIMILAR VOLUMES


Sums of diagonalizable matrices
✍ J.D. Botha πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 150 KB

It is shown that a square matrix A over an arbitrary field F is a sum of two diagonalizable matrices, except when F = GF(2), in which case A is a sum of three diagonalizable matrices. The extent to which the ranks of the summands can be prescribed over an infinite field is also investigated, and nec

New convergence results on the global GM
✍ M. Bellalij; K. Jbilou; H. Sadok πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 169 KB

In the present paper, we give some new convergence results of the global GMRES method for multiple linear systems. In the case where the coefficient matrix A is diagonalizable, we derive new upper bounds for the Frobenius norm of the residual. We also consider the case of normal matrices and we prop