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arXiv 1902.06256math.AGmath.ATmath.COmath.GT
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Milnor纤维同源性中排列补的双重覆盖和$2$ -扭转

Double coverings of arrangement complements and $2$-torsion in Milnor fiber homology

Masahiko Yoshinaga

摘要:

证明了复超平面排列补的二重覆盖的模$2$贝蒂数是组合确定的.该证明基于mod $2$ Aomoto复形与转移长正合序列之间的关系。将上述结果应用于二十面体排列(与二十面体相关的三维空间中的$16$平面),我们得出Milnor纤维的第一同调具有非平凡的$2$ -挠率.

英文摘要:

We prove that the mod $2$ Betti numbers of double coverings of a complex hyperplane arrangement complement are combinatorially determined. The proof is based on a relation between the mod $2$ Aomoto complex and the transfer long exact sequence. Applying the above result to the icosidodecahedral arrangement ($16$ planes in the three dimensional space related to the icosidodecahedron), we conclude that the first homology of the Milnor fiber has non-trivial $2$-torsion.

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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