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Item Symmetry classification and invariant solutions of the variable coefficient BBM equation(Elsevier, 2013) Molati, M.; Khalique, C. M.We perform Lie symmetry classification of a time-variable coefficient BBM equation, which arises in the modeling of long waves of small amplitude in �1 � 1� dimensions. The direct method of group classification is employed to specify the forms of these time-dependent coefficients. Some exact solutions are derived.