| order | 75 |
| isoclinism | isoclinic class of C52⋊C3 |
| automorphism | Aut(G) = AΓL(1,𝔽25) (order 1200) · Inn(G) = G · Out(G) = M16 |
| homology | Abelianization (H1) = C3 · Schur multiplier (H2) = C5 |
| unambiguous semidirect product | C52⋊C3 |
| Fitting, socle, derived, Sylow | C52 ⋊ C3 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C1 | G |
| commutator, Fitting, socle, cosocle, hypocenter | C52 | C3 |
| LCS | G ▷ C52 | |
| UCS | C1 | |
6 conjugacy classes of subgroups.
| minimal degree | μ(G) = 15 |
| transitive degree | μt(G) = 15 |
A minimal faithful permutation representation — 2 generators on 15 points:
(1,2,4)(3,7,9)(5,10,13)(6,12,15)(8,11,14);(1,3,8,13,15)(2,7,11,5,6)(4,10,9,12,14)Polycyclic presentation:
3,5^2|b^a=bc^2,c^a=bc^3| C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 | C9 | C10 | C11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| size | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 25 | 25 |
| order | 1 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 |
| χ1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| χ2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||
| χ3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||
| χ4 | 3 | −2ζ−ζ8−2ζ11−ζ13 | −ζ−2ζ2−2ζ7−ζ11 | −ζ2−2ζ4−ζ7−2ζ14 | −ζ4−2ζ8−2ζ13−ζ14 | 0 | 0 | ||||
| χ5 | 3 | −ζ−2ζ2−2ζ7−ζ11 | −ζ4−2ζ8−2ζ13−ζ14 | −2ζ−ζ8−2ζ11−ζ13 | −ζ2−2ζ4−ζ7−2ζ14 | 0 | 0 | ||||
| χ6 | 3 | −ζ4−2ζ8−2ζ13−ζ14 | −ζ−2ζ2−2ζ7−ζ11 | −ζ2−2ζ4−ζ7−2ζ14 | −2ζ−ζ8−2ζ11−ζ13 | 0 | 0 | ||||
| χ7 | 3 | −ζ−2ζ2−2ζ7−ζ11 | −ζ2−2ζ4−ζ7−2ζ14 | −ζ4−2ζ8−2ζ13−ζ14 | −2ζ−ζ8−2ζ11−ζ13 | 0 | 0 | ||||
| χ8 | 3 | −2ζ−ζ8−2ζ11−ζ13 | −ζ2−2ζ4−ζ7−2ζ14 | −ζ4−2ζ8−2ζ13−ζ14 | −ζ−2ζ2−2ζ7−ζ11 | 0 | 0 | ||||
| χ9 | 3 | −ζ2−2ζ4−ζ7−2ζ14 | −2ζ−ζ8−2ζ11−ζ13 | −ζ−2ζ2−2ζ7−ζ11 | −ζ4−2ζ8−2ζ13−ζ14 | 0 | 0 | ||||
| χ10 | 3 | −ζ2−2ζ4−ζ7−2ζ14 | −ζ4−2ζ8−2ζ13−ζ14 | −2ζ−ζ8−2ζ11−ζ13 | −ζ−2ζ2−2ζ7−ζ11 | 0 | 0 | ||||
| χ11 | 3 | −ζ4−2ζ8−2ζ13−ζ14 | −2ζ−ζ8−2ζ11−ζ13 | −ζ−2ζ2−2ζ7−ζ11 | −ζ2−2ζ4−ζ7−2ζ14 | 0 | 0 |
Here ζ is a primitive root of unity of order 15 (ζ15 = 1); i = ζ3.
| derived subgroup of | #3874, #64470, #64480, … |
| maximal subgroup of | #3874, (C5⋊D5)⋊C3, C2×C52⋊C3, … |
| maximal normal subgroup of | #3874, (C5⋊D5)⋊C3, C2×C52⋊C3, … |
| maximal quotient of | C2×C52⋊C3, C52⋊C9, C3×C52⋊C3, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(75, 2);