Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Subject "Hilbert space"

Now showing items 1-3 of 3

    • Conditions for Positivity of Operators in Non-unital C*-algebras 

      Obogi, R. K.; Bosire, J. N.; Okelo, N. B.; Ongati, Omolo (International Journal of Mathematical Analysis, 1/9/2015)
      In this paper, we present results on the necessary and sufficient condi-tions for positivity of operators in non-unital C*- algebras

    • Fixed Points Approximation for Non Expansive Operators in Hilbert Spaces 

      Okelo, N. B. (Int. J. Open Problems Compt. Math, 2/2/2021)
      Approximations of fixed points have been done in different space and classes. However, characterizations in norm attainable classes remain interesting. This paper discusses approximation of nonexpansive operators in Hilbert ...

    • On local minimum and orthogonality of normal derivations in Cp-classes 

      Owino, B. O.; Okelo, Bernad N.; Ongati, Naftali O. (G.I publications, 2017-02)
      The present paper gives some results on local minimum and orthogonality of normal derivations in Cp-Classes. We employ some techniques for normal derivations due to Mecheri, Hacene, Bounkhel and Anderson. Let CpCp be normal, ...