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Tree sign pattern matrices that require zero eigenvalues

Published online by Cambridge University Press:  17 April 2009

Wei-Hsu Chen  and
Mao-Ting Chien
Wei-Hsu Chen
Affiliation:
Department of Mathematics, Soochow University, Taipei, Taiwan 11102
Mao-Ting Chien
Affiliation:
Department of Mathematics, Soochow University, Taipei, Taiwan 11102
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Abstract

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We characterise tree sign pattern matrices that require at least k zero eigenvalues, and exactly k zero eigenvalues.

Type
Research Article
Information
Bulletin of the Australian Mathematical Society , Volume 55 , Issue 1 , February 1997 , pp. 81 - 88
Copyright
Copyright © Australian Mathematical Society 1997

References

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