Browsing Department of Mathematics by Title

Browsing Department of Mathematics by Title

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  • Anisotropic extension of Finch and Skea stellar model Astrophysics and Space Science 
    Sharma Ranjan; Das Shyam; Thirukkanesh, S. (Astrophysics and Space Science, 2017)
    In this paper, the spacetime geometry of Finch and Skea [Class. Quantum Grav., 6 (1989) 467] has been utilized to obtain closed-form solutions for a spherically symmetric anisotropic matter distribution. By examining its ...
  • Anisotropic static spheres with linear equation of state in isotropic coordinates 
    Govender, M; Thirukkanesh, S. (Astrophysics and Space Science, 2015)
    In this paper we present a general framework for generating exact solutions to the Einstein field equations for static, anisotropic fluid spheres in comoving, isotropic coordinates obeying a linear equation of state of the ...
  • Causal heat flow in Bianchi type-V Universe 
    Govender, M; Thirukkanesh, S. (International Journal of Modern Physics, 2014)
    In this paper we investigate the role of causal heat transport in a spatially homogeneous, locally-rotationally symmetric Bianchi type-V cosmological model. In particular, the causal temperature profile of the cosmological ...
  • Characterization of epitaxial Cr thin films 
    Prinsloo, A. R. E.; Sheppard, C. J.; Fernando, P. R.; Madau, P. (59th Annual Conference of the South African Institute of Physics, 2013)
    Thin films and heterostructures of Cr and Cr alloys show fascinating properties that is not observed in the bulk material and research into their magnetic properties gives insight into dimensionality effects in these ...
  • Charged anisotropic matter with a linear equation of state, Classical and Quantum Gravity 
    Thirukkanesh, S; Maharaj, S. D. (Classical and Quantum Gravity, 2008)
    We consider the general situation of a compact relativistic body with anisotropic pressures in the presence of the electromagnetic field. The equation of state for the matter distribution is linear and may be applied to ...
  • Charged relativistic spheres with generalized potentials 
    Thirukkanesh, S.; Maharaj, S. D. (Mathematical Methods in the Applied Sciences, 2009)
    A new class of exact solutions of the Einstein-Maxwell system is found in closed form. This is achieved by choosing a generalised form for one of the gravitational potentials and a particular form for the electric field ...
  • Designing a Cooker to Utilise the Natural Waste Rice Husk as a Cooking Gas, 
    Fernando, P. R.; Karthika, U.; Parthipan, K.; Shandarabavan, T.; Ismail, R.; Jeeva, A (Advances in Recycling & Waste Management, 2017)
    Environmental pollution is big issue in the world, which is from the natural by-products. Some of these byproducts can be transformed into alternative energy source. Rice husk is the one of the natural by-product which ...
  • Dissipative collapse in the presence of Λ 
    Govender, M; Thirukkanesh, S. (International Journal of Theoretical Physics, 2009)
    We present the general junction conditions for the smooth matching of a spherically symmetric, shear-free spacetime to Vaidya’s outgoing metric across a four-dimensional time-like hypersurface in the presence of a cosmological ...
  • Effects of Fe substitution for isoelectronic Ru on the magnetic and transport properties of CeRu2Al10 
    Peratheepan, P.; Strydom, A. M. (The European Conference, 2014)
    We have investigated the effects of magnetic Fe ion substitution in Ce(Ru1−xFex)2Al10 on the magnetic and transport properties, when the Kondo insulator CeRu2Al10 with anomalous antiferromagnetic order at TN = 27 K [1] ...
  • Effects of nanoparticles on the flame retardancy of the ammonium sulphamate-dipentaerythritol flame-retardant system in polyamide 6 
    Dahiya, J. B.; Kandola, B.; Sitpalan, A; Horrocks., A. R. (Journal of Polymer Advance Technology, 2013)
    This paper extends the work of Lewin et al., which showed that high levels of flame retardancy could be conferred on polyamide 6 (PA6) in the presence of small concentrations of ammonium sulphamate (AS) and dipentaerythritol ...
  • Exact models for isotropic matter 
    Thirukkanesh, S; Maharaj, S. D. (Classical and Quantum Gravity, 2006)
    We study the Einstein-Maxwell system of equations in spherically symmetric gravitational fields for static interior spacetimes. The condition for pressure isotropy is reduced to a recurrence equation with variable, ...
  • The final outcome of dissipative collapse in the presence of Λ, PRAMANA 
    Thirukkanesh, S.; Moopanar, S.; Govender, M (journal of Physics, 2012)
    We investigate the role played by the cosmological constant during gravitational collapse of a radiating star with vanishing Weyl stresses in the interior. We highlight the role played by the cosmological constant during ...
  • Flame retardant polyamide fibres: The challenge of minimising flame retardant additive contents with added nanoclays 
    Horrocks, A. R.; Sitpalan, A.; Zhou, C.; Kandola, B. (Polymers, 2016)
    This work shows that halogen-free, flame retarded polyamide 6 (PA6), fabrics may be produced in which component fibres still have acceptable tensile properties and low levels (preferably ď10 wt %) of additives by ...
  • General relativistic model for mixed fluid sphere with equation of state 
    Ragel, F. C.; Thirukkanesh, S. (The European Physical Journal, 2019)
    We generate a general frame work to solve the Einstein system with an equation of state that describe static spherically symmetric anisotropic matter distribution in terms of a generating function. It is examined for a Van ...
  • Generalized isothermal models with strange equation of state 
    Thirukkanesh, S; Maharaj, S. D. (PRAMANA- journal of Physics, 2008)
    We consider the linear equation of state for matter distributions that may be applied to strange stars with quark matter. In our general approach the compact relativistic body allows for anisotropic pressures in the ...
  • Generating potentials via difference equations, 
    Maharaj, S. D.; Thirukkanesh, S (Mathematical Methods in the Applied Sciences, 2006)
    The condition for pressure isotropy, for spherically symmetric gravitational fields with charged and uncharged matter, is reduced to a recurrence equation with variable, rational coefficients. This difference equation is ...
  • Intervention of CIDA restore project for providing safe drinking water to the villages Palameenmadu and Puthukkudiyiruppu 
    Fernando, P. R.; Krishanthan, S. (2nd Conference of CIDA Restore Project, 2009)
    The water crisis is one of the most significant issues in Sri Lanka after the Tsunami inclusive of Batticaloa district. The people those who are living in the Batticaloa district especially in Tsunami affected areas are ...
  • Long-range magnetic order in CeRu2Al10 studied via muon spin relaxation and neutron diffraction 
    Khalyavin, D. D.; Hillier, A. D.; Adroja, D. T.; Strydom, A. M.; Manuel, P.; Chapon, L. C.; Peratheepan, P.; Night, K.; Deen, P.; Ritter, C.; Muro, Y.; Takabatake, T. (Physical Review, 2010)
    The low temperature state of CeRu2Al10 has been studied by neutron powder diffraction and muon spin relaxation (muSR). By combining both techniques, we prove that the transition occurring below T*~27K, which has been the ...
  • Magnetic and transport studies on Cr100-xIrx alloys Single crystal 
    Fernando, P. R.; Sheppard, C. J.; Prinsloo, A. R. E. (59th Annual Conference of the South African Institute of Physics, 2014)
    Abstract An investigation into the physical properties of Cr100-xIrx alloy single crystals, with x = 0.7, 1.5, 2.0 and 2.5, were previously used to determine the magnetic phase diagram of Cr100-xIrx alloy system around ...
  • Mixed potentials in radiative stellar collapse 
    Thirukkanesh, S.; Maharaj, S. D. (Journal of Mathematical Physics, 2010)
    We study the behaviour of a radiating star when the interior expanding, shearing fluid particles are traveling in geodesic motion. We demonstrate that it is possible to obtain new classes of exact solutions in terms of ...

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