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arxiv: 1305.2989 · v3 · pith:NAP6LZQUnew · submitted 2013-05-14 · 🧮 math.SG

Symplectic capacities from Hamiltonian circle actions

classification 🧮 math.SG
keywords circlehamiltoniansymplecticactionactionscapacitiescapacityclosed
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Let $M$ be a closed Fano symplectic manifold with a semifree Hamiltonian circle action with isolated maximum. We compute the Gromov width and the Hofer-Zehnder capacity of $M$ using a moment map.

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