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Self-similar asymptotics for solutions to the intermediate long-wave equation

Self-similar asymptotics for solutions to the intermediate long-wave equation We consider the Cauchy problem for the intermediate long-wave equation $$\begin{aligned} u_{t}-\partial _{x}u^{2}+\frac{1}{\vartheta }u_{x}+VP\int _{\mathbb {R}}\frac{1}{2\vartheta }\coth \left( \frac{\pi \left( y-x\right) }{2\vartheta }\right) u_{yy}\left( t,y\right) \mathrm{d}y=0, \end{aligned}$$ u t - ∂ x u 2 + 1 ϑ u x + V P ∫ R 1 2 ϑ coth π y - x 2 ϑ u yy t , y d y = 0 , where $$\vartheta >0$$ ϑ > 0 . Our purpose in this paper is to prove the large time asymptotic behavior of solutions under the nonzero mass condition $$\int u_{0}\left( x\right) \mathrm{d}x\ne 0$$ ∫ u 0 x d x ≠ 0 . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Evolution Equations Springer Journals

Self-similar asymptotics for solutions to the intermediate long-wave equation

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References (56)

Publisher
Springer Journals
Copyright
Copyright © 2019 by Springer Nature Switzerland AG
Subject
Mathematics; Analysis
ISSN
1424-3199
eISSN
1424-3202
DOI
10.1007/s00028-019-00498-5
Publisher site
See Article on Publisher Site

Abstract

We consider the Cauchy problem for the intermediate long-wave equation $$\begin{aligned} u_{t}-\partial _{x}u^{2}+\frac{1}{\vartheta }u_{x}+VP\int _{\mathbb {R}}\frac{1}{2\vartheta }\coth \left( \frac{\pi \left( y-x\right) }{2\vartheta }\right) u_{yy}\left( t,y\right) \mathrm{d}y=0, \end{aligned}$$ u t - ∂ x u 2 + 1 ϑ u x + V P ∫ R 1 2 ϑ coth π y - x 2 ϑ u yy t , y d y = 0 , where $$\vartheta >0$$ ϑ > 0 . Our purpose in this paper is to prove the large time asymptotic behavior of solutions under the nonzero mass condition $$\int u_{0}\left( x\right) \mathrm{d}x\ne 0$$ ∫ u 0 x d x ≠ 0 .

Journal

Journal of Evolution EquationsSpringer Journals

Published: Mar 22, 2019

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