摘要
We prove that certain 1-relator groups have Property E. Using this fact, we characterize all conjugacy separable 1-relator groups of the form a,b;(a-αbβaαbγ)t , t 1, having residually finite outer automorphism groups.
We prove that certain 1-relator groups have Property E. Using this fact, we characterize all conjugacy separable 1-relator groups of the form 〈a, b; (a -α b β a α b γ) t 〉, t ? 1, having residually finite outer automorphism groups.
基金
supported by Korean Research Foundation funded by the Korean Government (Grant No. KRF-2007-313-C00015)
The second author was supported by Natural Science and Engineering Research Council of Canada (Grant No. A-4064)
