Completions of upper-triangular matrices to left-Fredholm operators with non-positive index

DOI10.7900/jot.2015sep07.2078zbMath1389.47046OpenAlexW2524389265MaRDI QIDQ2835250

Dragana S. Cvetković-Ilić

Publication date: 1 December 2016

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

Full work available at URL: https://doi.org/10.7900/jot.2015sep07.2078

zbMATH Keywords

Fredholm operatorindex of operatorupper-triangular operator matrixleft-Fredholm operator with non-positive index

Mathematics Subject Classification ID

(Semi-) Fredholm operators; index theories (47A53)

Related Items

Characterizations on upper semi-Fredholmness of two-by-two operator matrices, Perturbations of spectra and property \((R)\) for upper triangular operator matrices, Solvability and different solutions of the operator equation \(XAX=BX\)