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Various optical properties of two dimensional buckled silicene have been explored using spin unpolarized density functional theory by incorporating doping with phosphorous and aluminium atoms in the hexagonal network of pristine buckled silicene.

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Abstract. The differential equations of motion of the elliptic restricted problem of three bodies with decreasing mass are derived. The mass of the infirfitesimal body varies with time. We have applied Jeans' law and the space-time transformation of Meshcherskii. In this problem the space-time transformation is applicable only in the special case when n = 1, k = 0, q = 89 We have applied Nechvile's transformation for the elliptic problem. We find that the equations of motion of our problem differ from that of constant mass only by a small perturbing force.