Abstract
This paper concerns with the global classical solution to the Cauchy problem of the nonlinear double dispersive wave equation with strong damping uttuutt + � 2 u cut = d N X i=1 ∂ ∂xi σ i(uxi), where c and d are positive constants. By the contraction mapping principle and priori estimates, we prove that the Cauchy problem admits a unique global classical solution, and by the concavity method, we give the sufficient condi- tions on the blowup of the global solution of the Cauchy problem. Finally, as an application, an example is also given.
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