Different completions of \(A + CX\)

DOI10.4171/JST/356OpenAlexW3191282293MaRDI QIDQ2078200

Qing-Wen Wang, Yi-Min Wei, Dragana S. Cvetković-Ilić

Publication date: 28 February 2022

Published in: Journal of Spectral Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.4171/jst/356

zbMATH Keywords

Fredholm operatorcompletion problemsoperator matrixright (left) semi-Fredholm operator

Mathematics Subject Classification ID

General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) General theory of linear operators (47A99)

Cites Work

• An analogue to a result of Takahashi
• On the right (left) invertible completions for operator matrices
• The semi-Fredholmness of \(2\times 2\) operator matrices
• On surjectivity and denseness of range of the operator \(A+CX\)
• Invertible completions of operator matrices
• An analogue to a result of Takahashi. II
• Invertible and regular completions of operator matrices