劉期懷

劉期懷，1980年4月出生於湖南隆回，研究方向為常微分方程與動力系統。

工作與學習經歷：

1998-2002 湘潭大學（獲學士學位）；

2002-2006 桂林航天工業高等專科學校（教師）；

2006-2011 蘇州大學（獲博士學位；導師：錢定邊教授）；

2011-至今 桂林電子科技大學（講師）.

獲獎情況：

2005年指導學生參加全國大學生數學建模競賽獲全國一等獎；

主要研究興趣：

1、玻色-愛因斯坦凝聚系統

2、KAM方法

3、非光滑哈密頓系統

Publications

1、Dnamics of Bose-Einstein condensates

● Qihuai Liu, Dingbian Qian. Modulated amplitude waves with nonzero phases in Bose-Einstein condensates，J. Math. Phys.2011,52（1）（also selected for Virtual Journal of Atomic Quantum Fluids，3 (9) （2011））. PDF arXiv:1103.5277

● Qihuai Liu, Dingbian Qian. Construction of modulated amplitude waves via averaging in collisionally inhomogeneous Bose-Einstein condensates 2011.PDF arXiv:1104.0993

2、KAM method

● Qihuai Liu, Dingbian Qian and Zhiguo Wang,Quasi-periodic solutions of the Lotka-Volterra Competition Systems with Quasi-periodic Perturbations，submitted to Discrete Cont. Dyn. -B . 2011

● Zhiguo Wang and Qihuai Liu, Dingbian Qian, Existence of quasi-periodic solutions and Littlewood’s boundedness problem of sub-linear impact oscillators，Nonlinear Anal.: TMA 2011，74（16）.

● Qihuai Liu, Dingbian Qian and Zhiguo Wang,The stability of the equilibrium of the damped oscillator with damping changing sign，Nonlinear Anal.: TMA2010，73（7）.

3、Non-smoothness Hamiltonian systems

● Qihuai Liu, Dingbian Qian and Bin Chu, Nonlinear systems with singular vector Φ-Laplacian under the Hartman-type condition，Nonlinear Anal.: TMA2011，74（8）.

● Qihuai Liu and Zhiguo Wang，Periodic impact behavior of a class of Hamiltonian oscillators with obstacles，J. Math. Appl. Anal. 2010，365（1）

● Qihuai Liu, Xiying Sun and Dingbian Qian,Coexistence of unbounded solutions and periodic solutions of a class of planar systems with asymmetric nonlinearities，Bull. Soc. Math. Bel. 2010，17（4）.