论文标题
steenrod封闭参数理想,以$ a_4 $ and $ so(3)$的$ 2 $共同体中
Steenrod closed parameter ideals in the mod-$2$ cohomology of $A_4$ and $SO(3)$
论文作者
论文摘要
在本文中,我们将参数理想分类为$ h^*(ba_4; \ mathbb {f} _2)$,以及在dickson algebra $ h^*(bso(3); \ mathbb {f} _2 _2)$中,在Steenrod Operations下关闭。因此,我们获得了$ n,m $的限制,其中$ a_4 $(和$ so(3)$)可以在$ s^n \ times s^m $上自由作用。
In this paper, we classify the parameter ideals in $H^*(BA_4;\mathbb{F}_2)$ and in the Dickson algebra $H^*(BSO(3);\mathbb{F}_2)$ that are closed under Steenrod operations. Consequently, we obtain restrictions on the dimensions $n,m$ for which $A_4$ (and $SO(3)$) can act freely on $S^n\times S^m$.