Unobstructed symplectic packing by ellipsoids for tori and hyperkähler manifolds

被引:0
作者
Michael Entov
Misha Verbitsky
机构
[1] Technion - Israel Institute of Technology,Department of Mathematics
[2] Instituto Nacional de Matemática Pura e Aplicada (IMPA),Laboratory of Algebraic Geometry, Faculty of Mathematics
[3] National Research University HSE,undefined
来源
Selecta Mathematica | 2018年 / 24卷
关键词
53D35; 53C26; 14J28;
D O I
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摘要
Let M be a closed symplectic manifold of volume V. We say that the symplectic packings of M by ellipsoids are unobstructed if any collection of disjoint symplectic ellipsoids (possibly of different sizes) of total volume less than V admits a symplectic embedding to M. We show that the symplectic packings by ellipsoids are unobstructed for all even-dimensional tori equipped with Kähler symplectic forms and all closed hyperkähler manifolds of maximal holonomy, or, more generally, for closed Campana simple manifolds (that is, Kähler manifolds that are not unions of their complex subvarieties), as well as for any closed Kähler manifold which is a limit of Campana simple manifolds in a smooth deformation. The proof involves the construction of a Kähler resolution of a Kähler orbifold with isolated singularities and relies on the results of Demailly–Paun and Miyaoka on Kähler cohomology classes.
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页码:2625 / 2649
页数:24
相关论文
共 31 条
[1]  
Baily WL(1956)The decomposition theorem for V-manifolds Am. J. Math. 78 862-888
[2]  
Bierstone E(1997)Canonical desingularization in characteristic zero by blowing up the maximum strata of a local invariant Invent. Math. 128 207-302
[3]  
Milman P(1974)On the decomposition of Kähler manifolds with trivial canonical class Math. USSR-Sb. 22 580-583
[4]  
Bogomolov FA(2006)Isotrivialité de certaines familles Kählériennes de variétés non projectives Math. Z. 252 147-156
[5]  
Campana F(2014)Compact Kähler 3-manifolds without non-trivial subvarieties Algebr. Geom. 1 131-139
[6]  
Campana F(2004)Numerical characterization of the Kähler cone of a compact Kähler manifold Ann. Math. 159 1247-1274
[7]  
Demailly J-P(2016)Unobstructed symplectic packing for tori and hyper-kähler manifolds J. Topol. Anal. 8 589-626
[8]  
Verbitsky M(2001)Blowing up symplectic orbifolds Ann. Glob. Anal. Geom. 20 117-162
[9]  
Demailly J-P(1985)Pseudoholomorphic curves in symplectic manifolds Invent. Math. 82 307-347
[10]  
Paun M(1964)Resolution of singularities of an algebraic variety over a field of characteristic zero. I, II Ann. Math. 79 109-203-205-326