On entropy of spherical twists

On entropy of spherical twists
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关于球形扭曲的熵

DOI:
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发表时间:
2017
影响因子:
1
通讯作者:
Genki Ouchi
Genki Ouchi
中科院分区:
数学3区
文献类型:
--
作者:
Genki Ouchi

文献摘要

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本文计算了球面扭曲的范畴熵。特别地,我们证明了Gromov-Yomdin型猜想对球面扭转成立。此外,我们构造了K3曲面的Gromov-Yomdin型猜想的反例,修正了Fan对更高维的Calabi-Yau流形的构造。附录,由Arend Bayer,显示了非空的补充的一些球形物体的衍生类别的K3表面。
In this paper, we compute categorical entropy of spherical twists. In particular, we prove that Gromov-Yomdin type conjecture holds for spherical twists. Moreover, we construct counterexamples of Gromov-Yomdin type conjecture for K3 surfaces modifying Fan's construction for even higher dimensional Calabi-Yau manifolds. The appendix, by Arend Bayer, shows non-emptyness of complements of a number of spherical objects in the derived categories of K3 surfaces.