This note is to present some results on the group invertibility of linear combina- tions of idempotents when the difference of two idempotents is group invertible.
基金supported by the National Natural Science Foundation of China under grant No.11171222the Doctoral Program of the Ministry of Education under grant No.20094407120001
文摘This note is to present some results on the group invertibility of linear combina- tions of idempotents when the difference of two idempotents is group invertible.
