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<p>The Bianchi type VI<sub>0</sub> is examined under the influence of viscous fluid interacting with a cosmic string under modified<i> f</i>(R) gravitation. Here, the precise solution of the field equation was derived by taking into account three suitable physical relations, such as linearly varying deceleration parameter (LVDP), scalar expansion θ is directly related to a component of the shear scalar σ, and follows a power-law relation between the function F and the scale factor <i>a</i>. In addition, Ricci curvature R is found and studied the dynamics of the physical parameter of a given model. Here, we use&#xa0;linear parametrization of the deceleration parameter (DP) to analyse the transitioning universe for a given model. The nature of energy conditions is examined through graphical representations. In addition, the Om(z) analysis has been performed for an anisotropic universe.</p>

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Investigate Bianchi type VI0 bulk viscous cosmic string model in modified f(R) theory with LVDP

  • 期刊论文

  • 发表日期：

    2025年9月20日

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  • Usha Kayarkar,
  • Shailendra D. Deo

摘要

The Bianchi type VI0 is examined under the influence of viscous fluid interacting with a cosmic string under modified f(R) gravitation. Here, the precise solution of the field equation was derived by taking into account three suitable physical relations, such as linearly varying deceleration parameter (LVDP), scalar expansion θ is directly related to a component of the shear scalar σ, and follows a power-law relation between the function F and the scale factor a. In addition, Ricci curvature R is found and studied the dynamics of the physical parameter of a given model. Here, we use linear parametrization of the deceleration parameter (DP) to analyse the transitioning universe for a given model. The nature of energy conditions is examined through graphical representations. In addition, the Om(z) analysis has been performed for an anisotropic universe.