Initial boundary value problem for generalized logarithmic improved Boussinesq equation |
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| Authors: | Qingying Hu Hongwei Zhang |
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| Affiliation: | Department of Mathematics, Henan University of Technology, Zhengzhou, China |
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| Abstract: | In this paper, we consider the initial boundary value problem for generalized logarithmic improved Boussinesq equation. By using the Galerkin method, logarithmic Sobolev inequality, logarithmic Gronwall inequality, and compactness theorem, we show the existence of global weak solution to the problem. By potential well theory, we show the norm of the solution will grow up as an exponential function as time goes to infinity under some suitable conditions. Furthermore, for the generalized logarithmic improved Boussinesq equation with damped term, we obtain the decay estimate of the energy. Copyright © 2016 John Wiley & Sons, Ltd. |
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| Keywords: | generalized logarithmic improved Boussinesq equation initial boundary value problem existence of global solution exponential growth decay |
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