Browsing Faculty of Science & Technology (FST) by Author "Imagiri, S. K."

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    • nth-Aluthge transform of w-Hyponormal Operators 

      Pokhariyal, G. P.; Khalagai, J. M.; Imagiri, S. K. (Pushpa Publishing HouseSchool of Mathematics, University of Nairobi, 2011)
      In this paper, it is shown the exact location of w-hyponormal operators in a series of operator classes and that; the spectrum of the nth-Aluthge transform of any operator equals that of the operator and for w-hyponormal ...

    • On the normality of the products of n-power Quasinormal operators 

      Porkariyal, G. P.; Khalagai, J. M.; Imagiri, S. K. (Pushpa Publishing House, Allahabad, INDIA,School of Mathematics, University of Nairobi,, 2012)
      Given any two normal operators A and B on a Hilbert space H, it is known that AB is not normal in general. However, if A and B commute, then AB is also normal. In this account, we investigate some conditions under which ...