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arXiv · 2312.06476

Characterizing symplectic capacities on ellipsoids

Jean Gutt·Vinicius G. B. Ramos
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Abstract

It is a long-standing conjecture that all symplectic capacities which are equal to the Gromov width for ellipsoids coincide on a class of convex domains in $\mathbb{R}^{2n}$. It is known that they coincide for monotone toric domains in all dimensions. In this paper, we study whether requiring a capacity to be equal to the $k^{th}$ Ekeland-Hofer capacity for all ellipsoids can characterize it on a class of domains. We prove that for $k=n=2$, this holds for convex toric domains, but not for all monotone toric domains. We also prove that for $k=n\ge 3$, this does not hold even for convex toric domains.

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Jean Gutt, Vinicius G. B. Ramos. 2023-12-11. Characterizing symplectic capacities on ellipsoids. https://arxiv.org/abs/2312.06476

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