Duanzhi Zhang

activity

20092023

most citedOn the number of P-invariant closed characteristics on partially symmetric compact convex hypersurfaces in

R^{2 n}

8 citations · 20 across the 8 of their papers we have counts for

collaborators

Showing 2011Show all

2 papers · 1 filter

math.DS2011★ 4 cited

Multiple brake orbits on compact convex symmetric reversible hypersurfaces in $R^{2 n}$

Duanzhi Zhang, Chungen Liu

In this paper, we prove that there exist at least $[\frac{n + 1}{2}] + 1$ geometrically distinct brake orbits on every $C^{2}$ compact convex symmetric hypersurface $\Sg$ in $R^{2 n}$ fo…

math.DS2011★ 1 cited

Minimal period problems for brake orbits of nonlinear autonomous reversible semipositive Hamiltonian systems

Duanzhi Zhang

In this paper, for any positive integer $n$ , we study the Maslov-type index theory of $i_{L_{0}}$ , $i_{L_{1}}$ and $i_{- 1}^{L_{0}}$ with $L_{0} = {0} \times R^{n} \subset R^{2 n}$ and…

Multiple brake orbits on compact convex symmetric reversible hypersurfaces in R2n

Minimal period problems for brake orbits of nonlinear autonomous reversible semipositive Hamiltonian systems

Multiple brake orbits on compact convex symmetric reversible hypersurfaces in $R^{2 n}$