关于紧李群中群表示的存在性
On the existence of representations of finitely presented groups in compact Lie groups
摘要:
给定一个有限的,连通的2-复$X$,使得$b_2(X)\le1$,我们建立了两个关于$X$的基本群表示为紧连通李群$G$的存在性结果,在某些环上具有规定的值.如果是$b_2(X)=1$,我们假设是$G=SO(3)$,并且$X$的第一有理上同调群上的上积不为零。
英文摘要:
Given a finite, connected 2-complex $X$ such that $b_2(X)\le1$ we establish two existence results for representations of the fundamental group of $X$ into compact connected Lie groups $G$, with prescribed values on certain loops. If $b_2(X)=1$ we assume $G=SO(3)$ and that the cup product on the first rational cohomology group of $X$ is non-zero.
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