Asphericity of a length four relative presentation
We consider the relative group presentation P = < G, X | R > where X = { x \} and R = { xg_1 xg_2 xg_3 x^{-1} g_4 }. We show modulo a small number of exceptional cases exactly when P is aspherical. If the subgroup H of G is given by H = < g_1^{-1} g_2, g_1^{-1} g_3 g_1 , g_4 > then t...
| Main Authors: | , , |
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| Format: | Article |
| Published: |
World Scientific
2016
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| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/32633/ |