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arXiv 2101.06153math.SGmath.AG
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Looijenga对的塔与ECH容量的渐近性

Towers of Looijenga pairs and asymptotics of ECH capacities

Ben Wormleighton

摘要:

ECH的能力是丰富的障碍辛嵌入在4维,也被认为是出现在(可能是奇异的)投影曲面的代数正性的背景下。我们将这种联系扩展到一般凸复曲面域的辛侧与塔的极化复曲面的代数侧,然后使用这个角度来表明,子领先的渐近ECH能力的所有凸和凹复曲面域是$O(1)$。我们获得足够的标准时,子领导的渐近收敛在这种情况下,推广结果的哈钦斯和作者,并推导出新的障碍,环面域之间的嵌入相同的体积。我们还提出了两个不变量,以更精确地描述当收敛发生在复曲面的情况下。我们的方法在很大程度上是非复曲面的性质,并更广泛地适用于塔的极化Looijenga对。

英文摘要:

ECH capacities are rich obstructions to symplectic embeddings in 4-dimensions that have also been seen to arise in the context of algebraic positivity for (possibly singular) projective surfaces. We extend this connection to relate general convex toric domains on the symplectic side with towers of polarised toric surfaces on the algebraic side, and then use this perspective to show that the sub-leading asymptotics of ECH capacities for all convex and concave toric domains are $O(1)$. We obtain sufficient criteria for when the sub-leading asymptotics converge in this context, generalising results of Hutchings and of the author, and derive new obstructions to embeddings between toric domains of the same volume. We also propose two invariants to more precisely describe when convergence occurs in the toric case. Our methods are largely non-toric in nature, and apply more widely to towers of polarised Looijenga pairs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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