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Abstract and Applied Analysis
Volume 2013, Article ID 789896, 6 pages
Research Article

The Group Inverse of the Combinations of Two Idempotent Operators

1School of Mathematics and Statistics, Nanyang Normal University, Nanyang 473061, China
2School of Mathematical Sciences, South China Normal University, Guangzhou 510631, China

Received 1 August 2013; Accepted 7 October 2013

Academic Editor: Jaan Janno

Copyright © 2013 Shunqin Wang and Chunyuan Deng. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We present some inverses and group inverses results for linear combinations of two idempotents and their products.