Nonlinear waves are studied in a mixture of liquid and gas bubbles. Influenceof viscosity and heat transfer is taken into consideration on propagation ofthe pressure waves. Nonlinear evolution equations of the second and the thirdorder for describing nonlinear waves in gas-liquid mixtures are derived. Exactsolutions of these nonlinear evolution equations are found. Properties ofnonlinear waves in a liquid with gas bubbles are discussed.
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