Abstract
We prove that G is a group in which all noncyclic subgroups are TI-subgroups if and only if all noncyclic subgroups of G are normal in G. Moreover, we classify groups in which all subgroups of even order are TI-subgroups.
| Original language | English |
|---|---|
| Journal | Miscolc Mathematical Notes |
| Volume | 14 |
| Issue number | 3 |
| Pages (from-to) | 1037-1040 |
| ISSN | 1787-2405 |
| Publication status | Published - 2013 |
Keywords
- Noncyclic subgroup
- Normal
- Subgroup of even order
- TI-subgroup