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[期刊论文] 作者：Duan Huagui,Long Yiming,
来源：数学物理学报 年份：2004
In this paper, the concavity of closed geodesics proposed by M.Morse in 1930s is studied....
[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...
[期刊论文] 作者：LONG Yiming,ZHU Chaofeng,
来源：中国科学A辑 年份：2004
In this paper, we study the differentiable structure of theω-subset of Sp(2n), which is formed by all matrices in Sp(2n) possessing ω as an eigenvalue, for ω...
[期刊论文] 作者：LONG YIMING,ZHU CHAOFENG,
来源：数学年刊B辑（英文版） 年份：2004
Based on the spectral flow and the stratification structures of the symplectic group Sp(2n, C),the Maslov-type index theory and its generalization, the w-index...
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