Finiteness conjecture for refined Hofer–Zehnder capacities of inessential manifolds

Let MM be an inessential closed compact manifold. Write π1(M)\langle \pi_1(M)\rangle for the set of conjugacy classes of π1(M)\pi_1(M), and let Γπ1(M)\Gamma\subset \langle \pi_1(M)\rangle be a non-empty subset. The refined Hofer–Zehnder capacity CHZΓ(DM)C_{HZ}^{\Gamma}(DM) is defined using Hamiltonians whose non-constant periodic orbits in the conjugacy classes in Γ\Gamma have period greater than 11.

Finiteness conjecture. For every such Γ\Gamma, the capacity CHZΓ(DM)C_{HZ}^{\Gamma}(DM) is finite.

The source presents this as a conjecture about refined symplectic capacities of unit disc bundles; its resolution is not specified in the supplied material.

Sources & referencesView supporting material

Primary source

Urs Frauenfelder and Andrei Pajitnov, “Finiteness of π_1-sensitive Hofer-Zehnder capacity and equivariant loop space homology”, arXiv:1603.05793 (2016).

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