On the asphericity of one-relator relative presentations
1994 ◽
Vol 124
(4)
◽
pp. 713-728
◽
Keyword(s):
We study the 1-relator relative presentation 〈H, x|xaxbx−1c〉 where H is a group, a, b, c ∈ H, x ∉ H and b, c ≠ 1. We give necessary and sufficient conditions for this presentation to be aspherical apart from two outstanding special cases which remain open.
2001 ◽
Vol 25
(9)
◽
pp. 571-586
2009 ◽
Vol 08
(05)
◽
pp. 673-687
◽
1969 ◽
Vol 10
(1-2)
◽
pp. 204-206
◽
2017 ◽
Vol 09
(05)
◽
pp. 1750067