On the Open Problem Related to Rank Equalities for the Sum of Finitely Many Idempotent Matrices and Its Applications

Joint Authors

Chen, Mei-xiang
Chen, Qing-hua
Li, Qiao-xin
Yang, Zhong-peng

Source

The Scientific World Journal

Issue

Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2014-07-10

Country of Publication

Egypt

No. of Pages

7

Main Subjects

Medicine
Information Technology and Computer Science

Abstract EN

Tian and Styan have shown many rank equalities for the sum of two and three idempotent matrices and pointed out that rank equalities for the sum P 1 + ⋯ + P k with P 1 , … , P k be idempotent ( k > 3 ) are still open.

In this paper, by using block Gaussian elimination, we obtained rank equalities for the sum of finitely many idempotent matrices and then solved the open problem mentioned above.

Extensions to scalar-potent matrices and some related matrices are also included.

American Psychological Association (APA)

Chen, Mei-xiang& Chen, Qing-hua& Li, Qiao-xin& Yang, Zhong-peng. 2014. On the Open Problem Related to Rank Equalities for the Sum of Finitely Many Idempotent Matrices and Its Applications. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1050672

Modern Language Association (MLA)

Chen, Mei-xiang…[et al.]. On the Open Problem Related to Rank Equalities for the Sum of Finitely Many Idempotent Matrices and Its Applications. The Scientific World Journal No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1050672

American Medical Association (AMA)

Chen, Mei-xiang& Chen, Qing-hua& Li, Qiao-xin& Yang, Zhong-peng. On the Open Problem Related to Rank Equalities for the Sum of Finitely Many Idempotent Matrices and Its Applications. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1050672

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1050672