Abstract
This work has been divided in two parts. In the first part we give a sufficient conditions on an HNN extension of a free group to be cyclic subgroup seperable. In the second part we define just subgroup separability on a split extension of special groups which is actually on holomorph.
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Communicated by Tibor Katriňák
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Ateş, F., Sinan Çevik, A. (Cyclic) subgroup separability of HNN and split extensions. Math. Slovaca 57, 33–40 (2007). https://doi.org/10.2478/s12175-007-0012-9
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DOI: https://doi.org/10.2478/s12175-007-0012-9