桂林电子科技大学教师

刘期怀，1980年4月出生于湖南隆回，研究方向为常微分方程与动力系统。

工作与学习经历：

1998-2002 湘潭大学（获学士学位）；

2002-2006 桂林航天工业高等专科学校（教师）；

2006-2011 苏州大学（获博士学位；导师：钱定边教授）；

2011-至今 桂林电子科技大学（讲师）.

获奖情况：

2005年指导学生参加全国大学生数学建模竞赛获全国一等奖；

主要研究兴趣：

1、玻色-爱因斯坦凝聚系统

2、KAM方法

3、非光滑哈密顿系统

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）.