# REPRESENTATIONS OF THE MOORE-PENROSE INVERSE OF 2×2 BLOCK OPERATOR VALUED MATRICES

• Deng, Chun Yuan (COLLEGE OF MATHEMATICS SCIENCE SOUTH CHINA NORMAL UNIVERSITY) ;
• Du, Hong Ke (COLLEGE OF MATHEMATICS AND INFORMATION SCIENCE SHAANXI NORMAL UNIVERSITY)
• Published : 2009.11.01

#### Abstract

We obtain necessary and sufficient conditions for $2{\tims}2$ block operator valued matrices to be Moore-Penrose (MP) invertible and give new representations of such MP inverses in terms of the individual blocks.

#### References

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