Now showing items 1-2 of 2

    • Certain properties of the essential spectra in Banach spaces 

      Muhati, L. N.; Bonyo, J. O.; Agure, J. O. (Strathmore University, 2017)
      Let X be an arbitrary Banach space, and L (X) be the set of all bounded linear operators on X. We apply closed range theorem to determine some duality properties of the essential spectrum on L(X). Specifically, we introduce ...
    • Reproducing Kernels for hardy and Bergman spaces of the upper half plane 

      Bonyo, Job (Strathmore University, 2019-08)
      Using invertible isometries between Hardy and Bergman spaces of the unit disk D and the corresponding spaces of the upper half plane up, we determine explicitly the reproducing kernels for the Hardy and Bergman spaces ...