本文,我们研究了λ1a+λ2b的群逆,其中a与b为域上的代数中的超广义投影元.作为应用,我们给出了ambn(λ1ak+ λ2bl)的群逆的公式.
In this paper,we study the group inverse of a linear combination λ1a+ λ2b,where a and b are hypergeneralized projectors in an algebra over a field F.As applications,the formula for the group inverse of ambn(λ1ak + λ2bl) is given.