Result: On minimal faithful permutation representations of finite groups

Title:
On minimal faithful permutation representations of finite groups
Authors:
Source:
Bulletin of the Australian Mathematical Society. 62:311-317
Publisher Information:
Cambridge University Press (CUP), 2000.
Publication Year:
2000
Document Type:
Academic journal Article
File Description:
application/xml
Language:
English
ISSN:
1755-1633
0004-9727
DOI:
10.1017/s0004972700018797
Rights:
Cambridge Core User Agreement
Accession Number:
edsair.doi.dedup.....f12baa615b1890aa18c1d6c36ffb1b7c
Database:
OpenAIRE

Further Information

The minimal faithful permutation degree μ(G) of a finite group G is the least positive integer n such that G is isomorphic to a subgroup of the symmetric group Sn. Let N be a normal subgroup of a finite group G. We prove that μ(G/N) ≤ μ(G) if G/N has no nontrivial Abelian normal subgroup. There is an as yet unproved conjecture that the same conclusion holds if G/N is Abelian. We investigate the structure of a (hypothetical) minimal counterexample to this conjecture.