Dragana S. Cvetković‐Ilić, Vladimir Pavlović
Abstract
In this paper, the existence is considered of a Drazin invertible completion of an upper triangular operator matrix. The proof of a recently published result is corrected.
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In this paper, the existence is considered of a Drazin invertible completion of an upper triangular operator matrix. The proof of a recently published result is corrected.
Key concepts: Mathematics, Triangular matrix, Invertible matrix, Operator matrix, Operator (biology), Drazin inverse, Matrix (chemical analysis), Pure mathematics