Cusps of the Kähler moduli space and stability conditions on K3 surfaces

Cusps of the Kähler moduli space and stability conditions on K3 surfaces
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K3 表面上的凯勒模量空间尖点和稳定性条件

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发表时间:
2010
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影响因子:
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通讯作者:
H. Hartmann
H. Hartmann
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作者:
H. Hartmann

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马(数学学报,20(6):727 - 750,2009)建立了K3曲面的Fourier-Mukai伙伴与Kähler模空间尖点之间的双射。Kähler模空间可以描述为布里奇兰稳定流形的商。我们用下列方法研究了顶点附近的稳定性条件σ与相关的Fourier-Mukai伙伴Y之间的关系。(1)将σ的心与Y上相干束的心进行比较。(2)将Y构造为σ-稳定对象的模空间。附录中给出了一组$${mathcal{D}^b(X)}$$的自等价,它们尊重稳定性流形的分量$${Stab^{dagger}(X)}$$。
Ma (Int J Math 20(6):727–750, 2009) established a bijection between Fourier–Mukai partners of a K3 surface and cusps of the Kähler moduli space. The Kähler moduli space can be described as a quotient of Bridgeland’s stability manifold. We study the relation between stability conditions σ near to a cusp and the associated Fourier–Mukai partner Y in the following ways. (1) We compare the heart of σ to the heart of coherent sheaves on Y. (2) We construct Y as moduli space of σ-stable objects. An appendix is devoted to the group of auto-equivalences of $${mathcal{D}^b(X)}$$ which respect the component $${Stab^{dagger}(X)}$$ of the stability manifold.
DOI: 10.1215/00127094-2009-043
发表时间: 2009
影响因子: 2.5
作者:
D. Huybrechts;E. Macrì;P. Stellari
通讯作者: P. Stellari