Variable stoichiometry surface reconstructions: New models for GaAs(1¯1¯1¯) (2×2) and (√1¯9¯×√1¯9¯)

ABSTRACTS IN PERSIAN - Vol. 9, No. 1

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Cover vol. 9, no.1, February 2012

cover vol. 9, no.1, february 2012

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N ov 1 99 9 Cosmological models with variable “ constants ”

The behavior of the “constants”, G, c, h̄, a, e, mi and Λ, considering them as variable, in the framework of a flat cosmological model with FRW symmetries described by a bulk viscous fluid and considering mechanisms of adiabatic matter creation are investigated. Two cases are studied; one with radiation predominance and another of matter predominance. It is found that with the solution obtained ...

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