Concepedia

Perturbation of semi-Browder operators and stability of Browder's essential defect and approximate point spectrum

Fatma Fakhfakh, Maher Mnif

Journal of Mathematical Analysis and Applications · 2008 · 22 citations · 10 references

DOI

Concepts

References

10

Oper. Theory Adv. Appl.

Seppo Hassi, H. S. V. de Snoo · 2006 · 320 citations

, , +1

PERTURBATION THEORY FOR LINEAR OPERATORS

D. E. Edmunds · Journal of the London Mathematical Society · 1968 · 317 citations

, , +9

Theorems on ascent, descent, nullity and defect of linear operators

Angus E. Taylor · Mathematische Annalen · 1966 · 162 citations

, , +9

Semi-Browder operators and perturbations

Vladimir Rakočević · Studia Mathematica · 1997 · 98 citations · Full text

, , +7

Ascent, descent, and commuting perturbations

M. A. Kaashoek, David C. Lay · Transactions of the American Mathematical Society · 1972 · 85 citations · Full text

, , +11