Jun Zhang

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20242026

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2 papers · 1 filter

math.SG2024

Notes on symplectic squeezing in $T^{*} T^{n}$ and spectra of Finsler dynamics

Qi Feng, Jun Zhang

In this paper, on the one hand, we prove that for $n \geq 2$ any subbundle of $T^{*} T^{n}$ with bounded fibers symplectically embeds into a trivial subbundle of $T^* \mathbb T…

math.SG2024

Spectrally-large scale geometry in cotangent bundles

Qi Feng, Jun Zhang

In this paper, we prove that the $Ham$ -orbit space from a fiber of a large family of cotangent bundles, as a metric space with respect to the Floer-theoretic spectral metric,…

Notes on symplectic squeezing in T∗Tn and spectra of Finsler dynamics

Spectrally-large scale geometry in cotangent bundles

Notes on symplectic squeezing in $T^{*} T^{n}$ and spectra of Finsler dynamics