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带有记忆项的半线性板方程解的衰变估计
引用本文:吴学会,刘永琴.带有记忆项的半线性板方程解的衰变估计[J].吉首大学学报(自然科学版),2017,38(3):8.
作者姓名:吴学会  刘永琴
作者单位:(华北电力大学数理学院,北京 102206)
基金项目:国家自然科学基金青年项目资助(11201144,11201142);教育部留学回国人员科研启动基金资助(2013B010);中央高校基本科研业务费专项资金资助(2014MS57,2014MS63,2014ZZD10)
摘    要:研究多维空间Rn(n≥1)中带有记忆项的半线性板方程的初值问题.在傅里叶空间中,得到线性问题解的衰变估计.介绍了一系列时间加权索伯列夫空间,运用压缩映射定理,在足够小的初值假设下,得到半线性问题解的全局存在及最佳衰变估计.

关 键 词:板方程  记忆  衰变估计  正则性损耗项

Decay Estimates of Solutions to the Semi-Linear Plate Equation with Memory
WU Xuehui,LIU Yongqin.Decay Estimates of Solutions to the Semi-Linear Plate Equation with Memory[J].Journal of Jishou University(Natural Science Edition),2017,38(3):8.
Authors:WU Xuehui  LIU Yongqin
Institution:(Department of Mathematics and Physics,North China Electric Power University,Beijing 102206,China)
Abstract:The initial value problem of the semi-linear plate equation with memory in multi-dimension Rn(n≥1) is studied.In the Fourier space,we obtain the decay estimates of solutions to the linear problem.And through introducing a set of time-weighted Sobolev spaces and applying the contraction mapping theorem,we obtain the global in-time existence and the optimal decay estimates of solutions to the semi-linear problem under smallness assumption on the initial data.
Keywords:plate equation                                                                                                                        memory                                                                                                                        decay estimates                                                                                                                        regularity-loss type
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