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Abstract
Bianchi type-I cosmological model for a cloud of a string with bulk viscosity is investigated in Lyra geometry. To get a deterministic model of universe, we assumed a unique form of constant deceleration parameter (CDP). Also, the bulk viscosity is presented as a linear combination of two positive constants ξ 0 & ξ 1 with Hubble parameter i.e ξ = ξ 0 + ξ 1 H and studied the results resemblance with the constant and variable bulk viscosity in three different cases. Also, we conclude that the displacement vector used in Lyra geometry is vanishing in late time. The physical acceptability of the model is investigated.
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1 Dept. of Mathematics, Berhampur University, Berhampur, Odisha
2 Dept. of Mathematics, NIST, Berhampur, Odisha