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[期刊论文] 作者：LIU CHUNGEN,
来源：数学年刊B辑（英文版） 年份：2004
This paper studies the stability of the periodic solutions of the second order Hamiltonian systems with even superquadratic or subquadratic potentials. The auth...
[期刊论文] 作者：LIU Chungen,LONG Yiming,
来源：中国科学A辑 年份：2004
In this paper, various precise iteration equalities and inequalities of Morse indices for the closed geodesics are established. As applications of these formula...
NONTRIVIAL SOLUTIONS FOR ASYMPTOTICALLY LINEAR HAMILTONIAN SYSTEMS WITH LAGRANGIAN BOUNDARY CONDITIO
[期刊论文] 作者：Liu Chungen,Zhang Qingye,
来源：数学物理学报（英文版） 年份：2004
In this article,we study the existence of nontrivial solutions for a class of asymptotically linear Hamiltonian systems with Lagrangian boundary conditions by t...
[期刊论文] 作者：Li Chong,Liu Chungen,
来源：黑龙江科技学院学报 年份：2009
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
NONTRIVIAL SOLUTIONS FOR ASYMPTOTICALLY LINEAR HAMILTONIAN SYSTEMS WITH LAGRANGIAN BOUNDARY CONDITIO
[期刊论文] 作者：Liu Chungen,Zhang Qingye,
来源：黑龙江科技学院学报 年份：2012
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者：Zongjie Liu,Chungen Zhou,,
来源：Progress in Natural Science:Materials International 年份：2015
4 wt% CuO–96 wt% TiO2 granules were prepared by a spray drying process. The microstructure and optical property of CuO–TiO2 granules were studied. The results...
Effect of Y_2O_3 content in the pack mixtures on microstructure and oxidation resistance of B–Y modi
[期刊论文] 作者：Yanxiang Liu,Wan Wang,Zongjie Liu,Chungen Zhou,,
来源：Progress in Natural Science:Materials International 年份：2016
B–Y modified silicide coatings were prepared on Nb–Si based alloy by pack cementation at 1300 ℃ for 10 h. The effect of Y_2O_3 content in the pack mixtures o...
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