Isolated points of spectrum of (p,k)-quasihyponormal operators

Onp-hyponormal operators for 0<p<1

Ariyadasa Aluthge · Integral Equations and Operator Theory · 1990 · 383 citations

Natural Sciences, Physics, Probability Theory +3

Hyponormal operators and spectral density

Joseph G. Stampfli · Transactions of the American Mathematical Society · 1965 · 138 citations · Full text

Natural Sciences, Physics, Dynamical Systems +11

On (p,k)-quasihyponormal operators

In Hyoun Kim · Mathematical Inequalities & Applications · 2004 · 44 citations · Full text

Social Sciences, Economics, Microeconomics +3

On <i>k</i>-quasihyponormal operators II

B. C. Gupta, P. B. Ramanujan · Bulletin of the Australian Mathematical Society · 1981 · 35 citations · Full text

Natural Sciences, Architectural Representation, Dynamical Systems +10

Isolated point of spectrum of p-quasihyponormal operators

Kôtarô Tanahashi, Atsushi Uchiyama · Linear Algebra and its Applications · 2002 · 22 citations

Natural Sciences, Speech-language Pathology, Spectroscopy +7