Bulletin of the Korean Mathematical Society (대한수학회보)

Korean Mathematical Society (대한수학회)
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A PROPAGATION OF QUADRATICALLY HYPONORMAL WEIGHTED SHIFTS

  • Published : 2000.05.01
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Abstract

In this note we answer to a question of Curto: Non-first two equal weights in the weighted shift force subnormality in the presence of quadratic hyponormality. Also it is shown that every hyponormal weighted shift with two equal weights cannot be polynomially hyponormal without being flat.

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References

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