On the Necessary and Sufficient Condition for a Set of Matrices to Commute and Some Further Linked Results
This paper investigates the necessary and sufficient condition for a set of (real or complex) matrices to commute. It is proved that the commutator [A,B]=0 for two matrices A and B if and only if a vector v(B) defined uniquely from the matrix B is in the null space of a well-structured matrix defin...
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Format: | Article |
Language: | English |
Published: |
Hindawi Limited
2009-01-01
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Series: | Mathematical Problems in Engineering |
Online Access: | http://dx.doi.org/10.1155/2009/650970 |