Examples of non-target-representable symplectic capacities

Publication date

2026-02

Authors

Guggisberg, Yann BertrandISNI 0000000512533768
Ziltener, F.J.ISNI 0000000419572551

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Document Type

Article
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Abstract

We give the first concrete example of a symplectic capacity that is not target-representable. The capacity is defined on the class of all compact and exact symplectic manifolds. This provides some concrete answer to a question by Cieliebak, Hofer, Latschev, and Schlenk.We also show that a capacity on the class of all closed symplectic manifolds is not target-representable, if it is finite at certain symplectic manifolds. In particular, the Hofer-Zehnder capacity on the class of all closed symplectic manifolds is not target-representable.

Keywords

Analysis, Geometry and Topology, Computational Theory and Mathematics

Citation

Guggisberg, Y & Ziltener, F 2026, 'Examples of non-target-representable symplectic capacities', Differential Geometry and its Application, vol. 102, 102309. https://doi.org/10.1016/j.difgeo.2025.102309