Browsing Department of Mathematics by Title

Browsing Department of Mathematics by Title

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  • Radiating fluid sphere immersed in an anisotropic atmosphere 
    Naidu, N. F; Govender, M; Thirukkanesh, S; Maharaj, S. D (General Relativity and Gravitation, 2017)
    We model a radiating star undergoing dissipative gravitational collapse in the form of radial heat flux. The exterior of the collapsing star is described by the generalised Vaidya solution representing a mixture of null ...
  • Radiating relativistic matter in geodesic motion 
    Thirukkanesh, S.; Maharaj, S. D. (Journal of Mathematical Physics, 2009)
    We study the gravitational behaviour of a spherically symmetric radiating star when the fluid particles are in geodesic motion. We transform the governing equation into a simpler form which allows for a general analytic ...
  • The role of the electromagnetic field in dissipative collapse 
    Thirukkanesh, S; Govender, M (International Journal of Modern Physics, 2013)
    In this paper, we investigate the effect of charge on the collapse of a radiating, shearing sphere. The junction conditions required for the smooth matching of a general spherically symmetric spacetime (in the absence of ...
  • Shearing radiative collapse with expansion and acceleration 
    Thirukkanesh, S.; Rajah, S. S.; Maharaj, S. D. (Journal of Mathematical Physics, 2012)
    We investigate the behaviour of a relativistic spherically symmetric radiative star with an accelerating, expanding and shearing interior matter distribution in the presence of anisotropic pressures. The junction condition ...
  • Some new static charged spheres 
    Maharaj, S. D.; Thirukkanesh, S. (Nonlinear Analysis- Real World Applications, 2009)
    We present new exact solutions for the Einstein-Maxwell system in static spherically symmetric interior spacetimes. For a particular form of the gravitational potentials and the electric field intensity, it is possible ...
  • Spherically symmetric static matter configurations with vanishing radial pressure 
    Thirukkanesh, S.; Govender, M; Lortan, D. B (International Journal of Modern Physics, 2015)
    We present a new family of spherically symmetric, static solutions of the Einstein field equations in isotropic, comoving coordinates. The radial pressure at each interior point of these models vanishes yet equilibrium is ...
  • Superconductivity and Quantum Criticality in Cr100-zOsz alloys 
    Fernando, P. R.; Sheppard, C. J.; Prinsloo, A. R. E. (Journal of Acta Physica Polonica A, 2016)
    The magnetic phase diagrams of Cr alloys with group-8 metals, such as Re and Ru, show interesting properties. These include quantum critical and superconducting behavior. In order to extend these investigations this ...

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