On the number of isomorphism classes of derived subgroups
| Autor: | Soran Marzang, Mohammad Zarrin, Leyli Jafari Taghvasani |
|---|---|
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Czechoslovak Mathematical Journal. 69:665-670 |
| DOI: | 10.21136/cmj.2018.0464-17 |
| Popis: | We show that a finite nonabelian characteristically simple group G satisfies n = ∣π(G)∣ + 2 if and only if G ≅ A5, where n is the number of isomorphism classes of derived subgroups of G and π(G) is the set of prime divisors of the group G. Also, we give a negative answer to a question raised in M. Zarrin (2014). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|