2014/10/02 by Yang, Yong
#FOS: Mathematics #Group Theory (math.GR)
paper · doi:10.48550/arxiv.1410.0420
Let G be a permutation group of degree n and let s(G) denote the number of set-orbits of G. We determine inf(\frac log2 s(G) n) over all groups G that satisfy certain restrictions on composition factors (i.e. Alt(k), k > 4 cannot be obtained as a quotient of a subgroup of G).