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【期刊论文】The Quasiapproximate (U+K)-Invariants of Essentially Normal Operators
纪友清, You Qing Ji, and Jue Xian Li
Integr. Equ. Oper. Theory 50 (2004), 255-278,-0001,():
-1年11月30日
For a class of essentially normal operators, we characterize their norm closures of (U+K)-orbits. Moreover, we introduce a notion of the quasiapproximate (U+K)-equivalence of essentially normal operators and determine completely the quasiapproximate (U+K)-invariants. Finally, we give the canonical forms of essentially normal operators under this quasiap-proximate (U+K)-equivalence.
Essentially normal,, Bergmann operator,, Cowen-Douglas operator,, Unilateral weghted shift,, Quasiapproximate (, U+, K), -equivalence.,
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【期刊论文】THE(u+k)-ORBITS OF ESSENTIALLY NORMAL OPERATORS AND THEIR STRONG IRREDUCIBILITY
纪友清
,-0001,():
-1年11月30日
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