Quasisimilarify of Weighted Shifts of Multiplicity N and Degreem
Received:September 24, 1989  
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Yan Zikun Fujian Teachers Universi ty
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      In this article, We show that quasisimilar injective bilateral weighted' shifts of multiplicity N and degree m have equal essential spectra and show that quasisimilar injective unilateral weighted shifts of multiplicity N and degree m are similar. It is also gived that necessary and sufficient conditions for two injective bilateral weighted shifts of degree 2 to be quasisimilar.
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