Bulletin of the Korean Mathematical Society (대한수학회보)

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QUASI SIMILARITY AND INJECTIVE p-QUASIHYPONORMAL OPERATORS

  • Published : 2005.08.01
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Abstract

In this paper it is proved that quasisimilar n-tuples of tensor products of injective p-quasihyponormal operators have the same spectra, essential spectra and indices, respectively. And it is also proved that a Weyl n-tuple of tensor products of injective p-quasihyponormal operators can be perturbed by an n-tuple of compact operators to an invertible n-tuple.

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References

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