• Various notions of orthogonality in normed spaces 

      NB Okelo, JO Agure, PO Oleche (Elsevier, 2013-09-01)
      In this paper, we present various notions and aspects of orthogonality in normed spaces. Characterizations and generalizations of orthogonality are also considered. Results on orthogonality of the range and the kernel of ...