耦合非线性波动方程爆破时间的下确界 |
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引用本文: | 刘玉龙. 耦合非线性波动方程爆破时间的下确界[J]. 纺织高校基础科学学报, 2016, 0(4): 450-454. DOI: 10.13338/j.issn.1006-8341.2016.04.006 |
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作者姓名: | 刘玉龙 |
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作者单位: | 山西大学数学科学学院,山西太原,030006 |
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基金项目: | 国家自然科学基金资助项目(11171195) |
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摘 要: | 考虑带有阻尼和源项的非线性耦合波动方程,为了获得波动方程爆破时间的下确界,在有限时间爆破的结果下,选择适当辅助函数G(t),利用Cauchy不等式和能量初值E(0)的估计得到有关G(t)和G′(t)的微分不等式,并最终通过对时间积分进而得到非线性耦合波动方程爆破时间的下确界.
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关 键 词: | 耦合 非线性波动方程 爆破 下确界 |
Lower bounds for blow-up time of the coupled nonlinear wave equations |
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Abstract: | Considering the coupled nonlinear wave equation,to obtain the lower bounds for wave equations,in case of blow-up result,selecting suitable auxiliary function G (t) and get the differential inequality on G (t) and G'(t) by Cauchy inequality and the estimation of the initial energy E(0).Finally,by integrating over the time,the lower bounds of blow-up time for coupled nonlinear wave equation is obtained. |
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Keywords: | coupled nonlinear wave equation blow-up lower bounds |
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