扭曲Alexander不变量的归一化
几何拓扑
2015-07-07 v5
摘要
纽结的扭曲Alexander不变量在乘以单位的意义上是良定义的。我们通过组合方法消除了这种乘法歧义,并定义了归一化的扭曲Alexander不变量。随后我们证明,在归一化设定下该不变量与符号确定的Reidemeister挠率一致,并改进了对偶性定理。我们进一步获得了纽结为纤维化纽结时该不变量的必要条件,并研究了该不变量最高次数的行为。
引用
@article{arxiv.0705.2371,
title = {Normalization of twisted Alexander invariants},
author = {Takahiro Kitayama},
journal= {arXiv preprint arXiv:0705.2371},
year = {2015}
}
评论
15 pages, 1 figure; corrected the error about displaying a figure; 18 pages, 1 figure, modified the normalization of invariants and added a certain theorem; 19 pages, 1 figure, improved Theorem 6.6; to appear in International Journal of Mathematics