Jian Wang

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20172021

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math.DS2018

A question of Norton-Sullivan in the analytic case

Jian Wang, Hui Yang

In 1996, A. Norton and D. Sullivan asked the following question: If $f : T^{2} \to T^{2}$ is a diffeomorphism, $h : T^{2} \to T^{2}$ is a contin…

math.DS2017

On bifurcation of eigenvalues along convex symplectic paths

Yinshan Chang, Yiming Long, Jian Wang

We consider a continuously differentiable curve $t \mapsto γ (t)$ in the space of $2 n \times 2 n$ real symplectic matrices, which is the solution of the following ODE: $\frac{\mathrm{d…