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Pointwise multipliers for Besov spaces of dominating mixed smoothness-Ⅱ 被引量:1
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作者 NGUYEN Van Kien SICKEL Winfried 《Science China Mathematics》 SCIE CSCD 2017年第11期2241-2262,共22页
We continue our investigations on pointwise multipliers for Besov spaces of dominating mixed smoothness. This time we study the algebra property of the classes S_(p,q)~rB(R^d) with respect to pointwise multiplication.... We continue our investigations on pointwise multipliers for Besov spaces of dominating mixed smoothness. This time we study the algebra property of the classes S_(p,q)~rB(R^d) with respect to pointwise multiplication. In addition, if p≤q, we are able to describe the space of all pointwise multipliers for S_(p,q)~rB(R^d). 展开更多
关键词 pointwise multipliers algebras with respect to pointwise multiplication Besov spaces of dominating mixed smoothness characterization by differences localization property
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CONTROL AND STABILIZATION OF THE KORTEWEG-DE VRIES EQUATION:RECENT PROGRESSES 被引量:2
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作者 Lionel ROSIER Bing-Yu ZHANG 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2009年第4期647-682,共36页
The study of the control and stabilization of the KdV equation began with the work ofRussell and Zhang in late 1980s.Both exact control and stabilization problems have been intensivelystudied since then and significan... The study of the control and stabilization of the KdV equation began with the work ofRussell and Zhang in late 1980s.Both exact control and stabilization problems have been intensivelystudied since then and significant progresses have been made due to many people's hard work andcontributions.In this article,the authors intend to give an overall review of the results obtained so farin the study but with an emphasis on its recent progresses.A list of open problems is also providedfor further investigation. 展开更多
关键词 Exact controllability Korteweg-de Vries equation smoothing property STABILIZABILITY unique continuation.
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Control and Stabilization of High-Order KdV Equation Posed on the Periodic Domain
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作者 ZHAO Xiangqing BAI Meng 《Journal of Partial Differential Equations》 CSCD 2018年第1期29-46,共18页
In this paper, we study exact controllability and feedback stabilization forthe distributed parameter control system described by high-order KdV equation posedon a periodic domain T with an internal control acting on ... In this paper, we study exact controllability and feedback stabilization forthe distributed parameter control system described by high-order KdV equation posedon a periodic domain T with an internal control acting on an arbitrary small nonemptysubdomain w of T. On one hand, we show that the distributed parameter controlsystem is locally exactly controllable with the help of Bourgain smoothing effect; onthe other hand, we prove that the feedback system is locally exponentially stable withan arbitrarily large decay rate when Slemrod's feedback input is chosen. 展开更多
关键词 High-order KdV equation Bourgain smoothing property exact controllability Slem-rod's feedback law exponential stabilizability.
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