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Invertibility of the Sum of Idempotents |
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| Authors: | J J Koliha V Rako evi&#x |
| Institution: | J. J. Koliha ,V. RakoČ,ević, |
| Abstract: | We study necessary and sufficient conditions for the invertibility of the sum f+g when f and g are idempotents in a unital ring or bounded linear operators in Hilbert or Banach spaces. We describe the relation between the invertibility of f+g and f -g. |
| Keywords: | Unital Ring Idempotent Bounded Linear Operator |
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