1 |
B. P. Duggal, I. H. Jeon, and I. H. Kim, Continuity of the spectrum on a class of upper triangular operator matrices, Jour. Math. Anal. Appl. 370 (2010), 584-587.
DOI
ScienceOn
|
2 |
B. P. Duggal, I. H. Jeon, and I. H. Kim, On *-paranormal contractions and properties for *-class A operators, Linear Algebra Appl. 436 (2012), 954-962.
DOI
ScienceOn
|
3 |
P. B. Halmos, A Hilbert Space Problem Book, Van Nostrand, Princeton 1967.
|
4 |
I. S. Hwang and W. Y. Lee, The spectrum is continuous on the set of p-hyponormal operators, Math. Z. 235 (2000) 151-157.
DOI
|
5 |
T. Kato, Perturbation theory for nullity, deficiency and other quantities of linear operators, J. Anal. Math. 6 (1958), 261-322.
DOI
|
6 |
J. W. Lee and I. H. Jeon, Continuity of the spectrum on (classA)*, Korean J. Math. 21 (2013), 35-39.
DOI
ScienceOn
|
7 |
M. Mbekhta, Generalisation de la decomposition de Kato aux operateurs paranormaux et spectraux, Glasgow Math. J. 29 (1987), 159-175.
DOI
|
8 |
J. D. Newburgh, The variation of spectra, Duke Math. J. 18 (1951), 165-176.
DOI
|
9 |
M. Oudghiri, Weyl's and Browder's theorem for operators satisfying the SVEP, Studia Math. 163 (2004), 85-101.
DOI
|
10 |
P. Aiena, Operators which have a closed quasi-nilpotent part, Proc. Amer. Math. soc. 130 (2002), 2701-2710.
DOI
ScienceOn
|
11 |
C. Apostol, C. Foias and D. Voiculescu, Some results on non-quasitriangular operators. IV, Rev. Roum. Math. Pures Appl. 18 (1973), 487-514.
|
12 |
S. K. Berberian Approximate proper vectors, Proc. Amer. Math. Soc. 13 (1962), 111-114.
DOI
ScienceOn
|
13 |
J. B. Conway and B. B. Morrel, Operators that are points of spectral continuity, Integral equations and operator theory, 2 (1979), 174-198.
DOI
|
14 |
J. B. Conway and B. B. Morrel, Operators that are points of spectral continuity II, Integral equations and operator theory, 4 (1981), 459-503.
DOI
|
15 |
N. Dunford, Spectral operators, Pacific J. Math. 4 (1954), 321-354.
DOI
|
16 |
S. V. Djordjevic and B. P. Duggal, Weyl's theorem and continuity of spectra in the class of p-hyponormal operators, Studia Math. 143 (2000), 23-32.
DOI
|
17 |
S. V.Djordjevic, Continuity of the essential spectrum in the class of quasihyponormal operators, Vesnik Math. 50 (1998), 71-74.
|