Free torus actions and two-stage spaces

Free torus actions and two-stage spaces
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DOI:
10.1017/s0305004103007242
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发表时间:
2003-09
影响因子:
0.8
通讯作者:
B. Jessup;G. Lupton
B. Jessup;G. Lupton
中科院分区:
数学2区
文献类型:
--
作者:
B. Jessup;G. Lupton

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我们在一些新的情况下证明了Halperin的总秩猜想。我们的结果应用于具有两阶段Sullivan极小模型的椭圆空间,并通过组合上同调维的新下界和总秩的新上界得到。文章最后给出了实例并对今后的工作提出了建议。
We prove the toral rank conjecture of Halperin in some new cases. Our results apply to certain elliptic spaces that have a two-stage Sullivan minimal model, and are obtained by combining new lower bounds for the dimension of the cohomology and new upper bounds for the toral rank. The paper concludes with examples and suggestions for future work.