Geodesic
Weyl's theorems and continuity of spectra in the class of p-hyponormal operators
Studia Mathematica, Tome 143 (2000) no. 1, pp. 23-32
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We show that p-hyponormal operators obey Weyl's and a-Weyl's theorem. Also, we show that the spectrum, Weyl spectrum, Browder spectrum and approximate point spectrum are continuous functions in the class of all p-hyponormal operators.
DOI : 10.4064/sm-143-1-23-32
Keywords: p-hyponormal operators, Weyl's theorem, continuity of spectra 
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S. Djordjević; B. Duggal. Weyl's theorems and continuity of spectra in the class of p-hyponormal operators. Studia Mathematica, Tome 143 (2000) no. 1, pp. 23-32. doi: 10.4064/sm-143-1-23-32

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