Corrigendum/Addendum to: Ricci Soliton and Relativistic Thermodynamical Fluid Spacetime [Chaos Solitons Fractals 194 (2025) 116202)]

This corrigendum corrects the thermodynamical decomposition of the energy–momentum tensor used in “Ricci Soliton and Relativistic Thermodynamical Fluid Spacetime”. In Thangjam et al. (2025), the heat-flux contribution was written as 2η⊗γ, which is not symmetric in general and therefore is inconsistent with the required symmetry of the stress–energy tensor in the Einstein field equation. The correct formulation is T=(ρ+ϵ)η⊗η+2η⊙γ+τ,where η⊙γ=12(η⊗γ+γ⊗η). We record the consequent corrections to the induced field-equation identities, restate the affected results on Ricci solitons (including the conformal Killing and torse-forming cases), and amend the modified Poisson/Liouville relations. We also provide a corrected illustrative example consistent with the symmetric decomposition and clarify the role of the spatial-stress convention τ(ξ,⋅)=0.