The infinite staircase conjecture for ellipsoid embeddings into polydisks

From papers

Let n2n\geq 2 and k0k\geq 0. For each i0i\geq 0, let Ai,n(k)A_{i,n}^{(k)} and A^i,n(k)\hat{A}_{i,n}^{(k)} be the associated classes, and let CLn,k(α)C_{L_{n,k}}(\alpha), Ln,kL_{n,k}, ci,n,kc_{i,n,k}, di,n,kd_{i,n,k}, and Sn,kS_{n,k} denote the quantities defined above. Infinite staircase conjecture. For all α[c0,n,kd0,n,k,Sn,k]\alpha\in [\frac{c_{0,n,k}}{d_{0,n,k}},S_{n,k}],

C_{L_{n,k}}(\alpha)=\sup\left\\{\Gamma_{\alpha,L_{n,k}}(A)\left|A\in\bigcup_{i=0}^{\infty}\\{A_{i,n}^{(k)},\hat{A}_{i,n}^{(k)}\\}\right.\right\\}.

This conjecture asserts that the displayed families of classes provide all the lower bounds needed to describe the infinite staircase on the stated interval.

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Sources & referencesView supporting material

Primary source

Michael Usher, “Infinite staircases in the symplectic embedding problem for four-dimensional ellipsoids into polydisks”, arXiv:1801.06762 (2018).

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