Boundary Points of the Numerical Range of an Operator
1975 ◽
Vol 17
(5)
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pp. 689-692
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Keyword(s):
The purpose of this note is to investigate boundary points of the numerical range of an operator in terms of inner and outer center points. Some applications on commutators are given.Throughout this note, an operator will always mean a bounded linear operator on a Hilbert space X.
1974 ◽
Vol 17
(2)
◽
pp. 295-296
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Keyword(s):
Keyword(s):
1977 ◽
Vol 29
(5)
◽
pp. 1010-1030
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Keyword(s):
1989 ◽
Vol 32
(3)
◽
pp. 320-326
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1969 ◽
Vol 21
◽
pp. 1421-1426
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1971 ◽
Vol 12
(2)
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pp. 110-117
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Keyword(s):
2008 ◽
Vol 39
(4)
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pp. 347-352
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