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一个拟线性椭圆方程解的爆破问题
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作者 赵青波 李艳峰 《漯河职业技术学院学报》 2012年第2期84-85,共2页
讨论了具双曲动力边界的拟线性椭圆方程解的爆破。在边界条件为半线性双曲型且初始能量为负及边界源项满足一定条件下,采取了不同于特征函数方法的凸性方法得到了解的爆破性。
关键词 拟线性 双曲动力边界 特征函数
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From phenomena of synchronization to exact synchronization and approximate synchronization for hyperbolic systems 被引量:3
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作者 LI TaTsien 《Science China Mathematics》 SCIE CSCD 2016年第1期1-18,共18页
In this survey paper, the synchronization will be initially studied for infinite dimensional dynamical systems of partial differential equations instead of finite dimensional systems of ordinary differential equations... In this survey paper, the synchronization will be initially studied for infinite dimensional dynamical systems of partial differential equations instead of finite dimensional systems of ordinary differential equations,and will be connected with the control theory via boundary controls in a finite time interval. More precisely,various kinds of exact boundary synchronization and approximate boundary synchronization will be introduced and realized by means of fewer boundary controls for a coupled system of wave equations with Dirichlet boundary controls. Moreover, as necessary conditions for various kinds of approximate boundary synchronization, criteria of Kalman's type are obtained. Finally, some prospects will be given. 展开更多
关键词 SYNCHRONIZATION exact boundary synchronization approximate boundary synchronization cou- pled system of wave equations Dirichlet boundary controls
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