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【岛根大学】—杉江实郎 Asymptotic stability of time-varying damped oscillators with

2015年03月19日 16:55  点击:[]

报告题目:Asymptotic stability of time-varying damped oscillators with multiple degrees of freedom

报告人:杉江实郎  教授 岛根大学大学院総合理工学研究科

报告校内联系人:卢玉峰   

报告时间:20150324日(周二)10:0010:30

报告地点:创新园大厦A1101

报告摘要:The present paper is devoted to an investigation on the asymptotic stability for the damped oscillators with multiple degrees of freedom,
x” + h(t)x' + Ax = 0
and its generalization
Mx'' + C(t)x' + Kx = 0,
where h(t) is a nonnegative function for t  0, A, M and K are n*n real constant matrices. and C(t) is an n*n matrix whose elements are real-valued functions of t.  The functions h(t) and C(t) correspond to the damping coefficient and the damping matrix, respectively.  The origin (x,x') = (0,0) is the only equilibrium of the above-mentioned damped oscillators.  Necessary and sufficient conditions are presented for the equilibrium of these oscillators to be asymptotically stable.  The obtained conditions are given by the forms of certain growth conditions concerning the damping h(t) and C(t), respectively.
 

报告人简介:杉江实郎

19876 -  19937     助教     冈山大理学部数学

19938 -  19953     助教授  州大学理学部数理自然情報科学科

19954 -  20123    教授     岛根大総合理工学部数理情報システム学科

20124 -                    教授     岛根大学大学院総合理工学研究科数理科学領域

 

研究领域:常微分方程 动力系统 差分方程 生物数学

已在《Proc. Roy. Soc. Edinburgh Sect. A》,《Discrete Contin. Dynam. Systems》,《J. Math. Anal. Appl》,《Nonlinear Anal》,《Proc. Amer. Math. Soc》等SCI杂志发表论文近百篇。

 

 

                                                                                                                      数学科学学院

2015319

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