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Duanzhi Zhang

Nankai University

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Publication

Featured researches published by Duanzhi Zhang.

Advanced Nonlinear Studies | 2006

Multiple Symmetric Brake Orbits in Bounded Convex Symmetric Domains

Duanzhi Zhang

Abstract In this paper, we prove that there exist at least two geometrically distinct symmetric brake orbits in every bounded convex symmetric domain in Rn for n ≥ 2.

Advances in Mathematics | 2006

Multiple brake orbits in bounded convex symmetric domains

Yiming Long; Duanzhi Zhang; Chaofeng Zhu

Journal of Differential Equations | 2014

Iteration theory of L-index and multiplicity of brake orbits

Chungen Liu; Duanzhi Zhang

Communications on Pure and Applied Mathematics | 2014

Seifert Conjecture in the Even Convex Case

Chungen Liu; Duanzhi Zhang

Annales De L Institut Henri Poincare-analyse Non Lineaire | 2014

Multiple brake orbits on compact convex symmetric reversible hypersurfaces in R2n

Duanzhi Zhang; Chungen Liu

Proceedings of the London Mathematical Society | 2013

Multiplicity of brake orbits on compact convex symmetric reversible hypersurfaces in R2n for n≥4

Duanzhi Zhang; Chungen Liu

Nonlinear Analysis-theory Methods & Applications | 2011

Brake type closed characteristics on reversible compact convex hypersurfaces in R2n

Duanzhi Zhang

Science China-mathematics | 2014

Symmetric period solutions with prescribed minimal period for even autonomous semipositive Hamiltonian systems

Duanzhi Zhang

Journal of Differential Equations | 2008

Relative Morse index and multiple brake orbits of asymptotically linear Hamiltonian systems in the presence of symmetries

Duanzhi Zhang

Science China-mathematics | 2007

Maslov-type index and brake orbits in nonlinear Hamiltonian systems

Duanzhi Zhang

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Chungen Liu

Nankai University

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Hui Liu

University of Science and Technology of China

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Chaofeng Zhu

Nankai University

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Yiming Long

Nankai University

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