The Jumping Phenomenon of Hodge Numbers

The Jumping Phenomenon of Hodge Numbers
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DOI:
10.2140/pjm.2008.235.379
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发表时间:
2007-04
期刊:
arXiv: Algebraic Geometry
影响因子:
--
通讯作者:
X. Ye
X. Ye
中科院分区:
其他
文献类型:
--
作者:
X. Ye

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设$X$是一个紧致复流形,考虑$X$的一个小变形$\Phi:\Mathcal{X}\to B$,在此变形下,Dolbeault上同调群$H^q(X_t,\Omega_{X_t}^p)$的维度可能变化.本文通过研究$H^Q(X,Omega_X^p)中一类参数为$t的类的障碍来研究这一现象,并得到了障碍的公式。
Let $X$ be a compact complex manifold, consider a small deformation $\phi: \mathcal{X} \to B$ of $X$, the dimension of the Dolbeault cohomology groups $H^q(X_t,\Omega_{X_t}^p)$ may vary under this defromation. This paper will study such phenomenons by studying the obstructions to deform a class in $H^q(X,\Omega_X^p)$ with the parameter $t$ and get the formula for the obstructions.