Browsing Journal Articles by Author "Masibayi, Andrew"

Browsing Journal Articles by Author "Masibayi, Andrew"

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  • Curvilinear co-ordinates and expression of motion equations from vector form to cylindrical co-ordinates 
    Cyprian, O. S.; Masibayi, Andrew; Okelo, N. B. (Hindawi, 2015-05)
    In this paper, we consider at the equations of motion in vector form and convert them to cylindrical coordinates.We also consider the continuity and momentum properties of these equations.
  • Expression of motion equations from vector form to spherical coordinates 
    Masibayi, Andrew; Cyprian, O.S; Okelo, N. B. (Hindawi, 2015-05)
    Navier-Stokes equations are the equations of conservation of linear momentum.In this paper we express this type of equation from vector form to spherical co-ordinates. We refer to some equations in this paper ...
  • On the convexity of the joint essential numerical ranges 
    Cyprian, O. S.; Masibayi, Andrew; Okelo, N. B. (Hindawi, 2015-05)
    The concept of essential numerical range of an operator was defined and studied by Stampfli and Williams in 1972. In this paper, we consider the joint essential numerical range of an m-tuple of operators T = (푇1,...,푇푚)in ...
  • On the joint essential maximal numerical ranges 
    Cyprian, O. S.; Masibayi, Andrew; Okelo, N. B. (Hindawi, 2015-05)
    The concept of maximal numerical range of a bounded operator T on B(X) was introduced and studied in by Stampfli who used it to derive an identity for the norm of derivation. This concept was later generalised by Ghan ...

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