@article{GDZPPN002295571,
title = {Theorems on Ascent, Descent, Nullity and Defect of Linear Operators.},
journal = {Mathematische Annalen},
volume = {163},
year = {1966},
pages = {18-49},
zbl = {0138.07602},
url = {http://dml.mathdoc.fr/item/GDZPPN002295571}
}
Taylor, A.E. Theorems on Ascent, Descent, Nullity and Defect of Linear Operators.. Mathematische Annalen, Tome 163 (1966) pp. 18-49. http://gdmltest.u-ga.fr/item/GDZPPN002295571/