Abstract
Conharmonically at space time is studied in the frame work of FRW cosmological model. Einstein’s field equations with variable cosmological constant are solved by using the law of variation of cosmological constant that scales as a-m (where a is scale factor and m is a positive constant). A new class of exact solutions of the field equations has been obtained in which cosmological constant decreases with cosmic time. Physical and geometrical properties are also discussed in detail.
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