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arXiv 1101.2252math.AGhep-th
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高秩Joyce-Song稳定偶的穿墙与不变量

Wall-crossing and invariants of higher rank Joyce-Song stable pairs

Artan Sheshmani

摘要:

我们介绍了一个更高级别的模拟乔伊斯宋理论的稳定对。给定一个非奇异投射Calabi-Yau三重$X$,我们定义了由${O}^{r}_{X}(-n)\rightarrow F$给出的高阶Joyce-Song对,其中$F$是一个具有一维支撑的纯凝聚层,$r>1$和$n\gg 0$是一个固定整数.我们配备了更高的秩对乔伊斯宋稳定性条件,并计算其相关的不变量使用wallcrossing技术在弱半稳定对象的类别。

英文摘要:

We introduce a higher rank analog of the Joyce-Song theory of stable pairs. Given a nonsingular projective Calabi-Yau threefold $X$, we define the higher rank Joyce-Song pairs given by ${O}^{r}_{X}(-n)\rightarrow F$ where $F$ is a pure coherent sheaf with one dimensional support, $r>1$ and $n\gg 0$ is a fixed integer. We equip the higher rank pairs with a Joyce-Song stability condition and compute their associated invariants using the wallcrossing techniques in the category of weakly semistable objects.

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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