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Group invariants
Abstract group: | $D_4^2:C_2^2$ |
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Order: | $256=2^{8}$ |
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Cyclic: | no |
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Abelian: | no |
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Solvable: | yes |
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Nilpotency class: | $4$ |
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Group action invariants
Degree $n$: | $32$ |
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Transitive number $t$: | $4769$ |
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Parity: | $1$ |
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Primitive: | no |
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$\card{\Aut(F/K)}$: | $2$ |
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Generators: | $(1,19,7,16,2,20,8,15)(3,18,5,14,4,17,6,13)(9,25,31,22,10,26,32,21)(11,27,30,23,12,28,29,24)$, $(1,12,2,11)(3,10,4,9)(5,31,6,32)(7,30,8,29)(13,25,14,26)(15,27,16,28)(17,22,18,21)(19,24,20,23)$, $(1,18,29,21,2,17,30,22)(3,19,31,23,4,20,32,24)(5,15,10,27,6,16,9,28)(7,13,11,26,8,14,12,25)$, $(1,5,11,32)(2,6,12,31)(3,8,10,29)(4,7,9,30)(13,28,21,19)(14,27,22,20)(15,26,23,17)(16,25,24,18)$ |
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Low degree resolvents
$\card{(G/N)}$ Galois groups for stem field(s) $2$: $C_2$ x 15 $4$: $C_2^2$ x 35 $8$: $D_{4}$ x 12, $C_2^3$ x 15 $16$: $D_4\times C_2$ x 18, $C_2^4$ $32$: $C_2^2 \wr C_2$ x 4, $C_2^2 \times D_4$ x 3 $64$: $(((C_4 \times C_2): C_2):C_2):C_2$ x 2, 16T105 $128$: 16T245 Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: $C_2$ x 3
Degree 4: $C_2^2$, $D_{4}$ x 2
Degree 8: $D_4\times C_2$, $(((C_4 \times C_2): C_2):C_2):C_2$ x 2
Degree 16: 16T271
Low degree siblings
16T636 x 4, 16T652 x 4, 16T657 x 4, 32T3110 x 4, 32T3111 x 2, 32T3112 x 2, 32T3113 x 4, 32T3114 x 2, 32T3115 x 2, 32T3116 x 2, 32T3185 x 2, 32T3186 x 2, 32T3187 x 4, 32T3188 x 2, 32T3189 x 2, 32T3190 x 2, 32T3209 x 2, 32T3210 x 2, 32T3211 x 2, 32T3212 x 2, 32T3213 x 2, 32T4769 x 3, 32T7442 x 2, 32T7470 x 2Siblings are shown with degree $\leq 47$
A number field with this Galois group has no arithmetically equivalent fields.
Conjugacy classes
Label | Cycle Type | Size | Order | Index | Representative |
1A | $1^{32}$ | $1$ | $1$ | $0$ | $()$ |
2A | $2^{16}$ | $1$ | $2$ | $16$ | $( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)(17,18)(19,20)(21,22)(23,24)(25,26)(27,28)(29,30)(31,32)$ |
2B | $2^{16}$ | $2$ | $2$ | $16$ | $( 1, 3)( 2, 4)( 5, 7)( 6, 8)( 9,12)(10,11)(13,16)(14,15)(17,19)(18,20)(21,24)(22,23)(25,27)(26,28)(29,31)(30,32)$ |
2C | $2^{16}$ | $2$ | $2$ | $16$ | $( 1, 9)( 2,10)( 3,12)( 4,11)( 5,29)( 6,30)( 7,31)( 8,32)(13,23)(14,24)(15,21)(16,22)(17,27)(18,28)(19,25)(20,26)$ |
2D | $2^{16}$ | $2$ | $2$ | $16$ | $( 1,12)( 2,11)( 3, 9)( 4,10)( 5,31)( 6,32)( 7,29)( 8,30)(13,22)(14,21)(15,24)(16,23)(17,25)(18,26)(19,27)(20,28)$ |
2E | $2^{16}$ | $4$ | $2$ | $16$ | $( 1, 6)( 2, 5)( 3, 8)( 4, 7)( 9,30)(10,29)(11,31)(12,32)(13,28)(14,27)(15,25)(16,26)(17,24)(18,23)(19,21)(20,22)$ |
2F | $2^{16}$ | $4$ | $2$ | $16$ | $( 1, 3)( 2, 4)( 5, 8)( 6, 7)( 9,12)(10,11)(13,24)(14,23)(15,22)(16,21)(17,27)(18,28)(19,25)(20,26)(29,32)(30,31)$ |
2G | $2^{16}$ | $4$ | $2$ | $16$ | $( 1, 8)( 2, 7)( 3, 6)( 4, 5)( 9,32)(10,31)(11,29)(12,30)(13,26)(14,25)(15,27)(16,28)(17,21)(18,22)(19,24)(20,23)$ |
2H | $2^{12},1^{8}$ | $4$ | $2$ | $12$ | $( 1,11)( 2,12)( 3,10)( 4, 9)( 5,31)( 6,32)( 7,29)( 8,30)(17,18)(19,20)(25,26)(27,28)$ |
2I | $2^{16}$ | $8$ | $2$ | $16$ | $( 1,23)( 2,24)( 3,21)( 4,22)( 5,18)( 6,17)( 7,19)( 8,20)( 9,14)(10,13)(11,15)(12,16)(25,32)(26,31)(27,29)(28,30)$ |
2J | $2^{16}$ | $8$ | $2$ | $16$ | $( 1,16)( 2,15)( 3,13)( 4,14)( 5,17)( 6,18)( 7,19)( 8,20)( 9,22)(10,21)(11,24)(12,23)(25,31)(26,32)(27,29)(28,30)$ |
2K | $2^{16}$ | $8$ | $2$ | $16$ | $( 1,32)( 2,31)( 3,29)( 4,30)( 5,12)( 6,11)( 7,10)( 8, 9)(13,24)(14,23)(15,21)(16,22)(17,27)(18,28)(19,26)(20,25)$ |
2L | $2^{16}$ | $8$ | $2$ | $16$ | $( 1,13)( 2,14)( 3,16)( 4,15)( 5,19)( 6,20)( 7,17)( 8,18)( 9,23)(10,24)(11,21)(12,22)(25,29)(26,30)(27,31)(28,32)$ |
2M | $2^{12},1^{8}$ | $8$ | $2$ | $12$ | $( 3, 4)( 5,31)( 6,32)( 7,30)( 8,29)( 9,10)(13,22)(14,21)(15,23)(16,24)(17,18)(25,26)$ |
2N | $2^{12},1^{8}$ | $8$ | $2$ | $12$ | $( 1, 8)( 2, 7)( 3, 5)( 4, 6)( 9,32)(10,31)(11,30)(12,29)(13,14)(19,20)(23,24)(25,26)$ |
4A | $4^{8}$ | $4$ | $4$ | $24$ | $( 1,20,12,28)( 2,19,11,27)( 3,18, 9,26)( 4,17,10,25)( 5,14,31,21)( 6,13,32,22)( 7,15,29,24)( 8,16,30,23)$ |
4B | $4^{8}$ | $4$ | $4$ | $24$ | $( 1, 5, 2, 6)( 3, 7, 4, 8)( 9,29,10,30)(11,32,12,31)(13,20,14,19)(15,17,16,18)(21,27,22,28)(23,26,24,25)$ |
4C | $4^{8}$ | $4$ | $4$ | $24$ | $( 1,19,12,27)( 2,20,11,28)( 3,17, 9,25)( 4,18,10,26)( 5,13,31,22)( 6,14,32,21)( 7,16,29,23)( 8,15,30,24)$ |
4D | $4^{8}$ | $4$ | $4$ | $24$ | $( 1,30, 2,29)( 3,32, 4,31)( 5, 9, 6,10)( 7,12, 8,11)(13,25,14,26)(15,28,16,27)(17,21,18,22)(19,24,20,23)$ |
4E | $4^{8}$ | $8$ | $4$ | $24$ | $( 1,18,12,26)( 2,17,11,25)( 3,20, 9,28)( 4,19,10,27)( 5,15,31,24)( 6,16,32,23)( 7,14,29,21)( 8,13,30,22)$ |
4F | $4^{8}$ | $8$ | $4$ | $24$ | $( 1,28,12,20)( 2,27,11,19)( 3,25, 9,17)( 4,26,10,18)( 5,14,31,21)( 6,13,32,22)( 7,16,29,23)( 8,15,30,24)$ |
4G | $4^{8}$ | $8$ | $4$ | $24$ | $( 1,22, 2,21)( 3,24, 4,23)( 5,20, 6,19)( 7,17, 8,18)( 9,15,10,16)(11,14,12,13)(25,30,26,29)(27,31,28,32)$ |
4H | $4^{8}$ | $8$ | $4$ | $24$ | $( 1, 8,12,30)( 2, 7,11,29)( 3, 5, 9,31)( 4, 6,10,32)(13,25,22,17)(14,26,21,18)(15,27,24,19)(16,28,23,20)$ |
4I | $4^{8}$ | $8$ | $4$ | $24$ | $( 1,26,11,17)( 2,25,12,18)( 3,27,10,20)( 4,28, 9,19)( 5,15,32,23)( 6,16,31,24)( 7,13,30,21)( 8,14,29,22)$ |
4J | $4^{8}$ | $8$ | $4$ | $24$ | $( 1, 6,11,31)( 2, 5,12,32)( 3, 7,10,30)( 4, 8, 9,29)(13,27,21,20)(14,28,22,19)(15,25,23,18)(16,26,24,17)$ |
4K | $4^{8}$ | $8$ | $4$ | $24$ | $( 1,30, 2,29)( 3,31, 4,32)( 5, 9, 6,10)( 7,11, 8,12)(13,21,14,22)(15,24,16,23)(17,25,18,26)(19,28,20,27)$ |
4L | $4^{8}$ | $8$ | $4$ | $24$ | $( 1, 6, 2, 5)( 3, 7, 4, 8)( 9,30,10,29)(11,32,12,31)(13,15,14,16)(17,19,18,20)(21,24,22,23)(25,28,26,27)$ |
4M | $4^{8}$ | $8$ | $4$ | $24$ | $( 1, 3, 2, 4)( 5,29, 6,30)( 7,32, 8,31)( 9,11,10,12)(13,23,14,24)(15,22,16,21)(17,20,18,19)(25,28,26,27)$ |
4N | $4^{8}$ | $16$ | $4$ | $24$ | $( 1,14, 8,25)( 2,13, 7,26)( 3,15, 6,27)( 4,16, 5,28)( 9,23,32,20)(10,24,31,19)(11,21,29,17)(12,22,30,18)$ |
4O | $4^{8}$ | $16$ | $4$ | $24$ | $( 1,15, 8,27)( 2,16, 7,28)( 3,14, 6,25)( 4,13, 5,26)( 9,22,32,18)(10,21,31,17)(11,24,29,19)(12,23,30,20)$ |
4P | $4^{6},2^{4}$ | $16$ | $4$ | $22$ | $( 1,31,11, 5)( 2,32,12, 6)( 3,29,10, 7)( 4,30, 9, 8)(13,15)(14,16)(17,27,18,28)(19,25,20,26)(21,24)(22,23)$ |
4Q | $4^{6},2^{2},1^{4}$ | $16$ | $4$ | $20$ | $( 1,29,11, 7)( 2,30,12, 8)( 3,31,10, 5)( 4,32, 9, 6)(13,14)(15,16)(17,25,18,26)(19,27,20,28)$ |
8A | $8^{4}$ | $16$ | $8$ | $28$ | $( 1,22,30,17, 2,21,29,18)( 3,24,32,20, 4,23,31,19)( 5,28, 9,16, 6,27,10,15)( 7,25,12,14, 8,26,11,13)$ |
8B | $8^{4}$ | $16$ | $8$ | $28$ | $( 1,23,29,20, 2,24,30,19)( 3,21,31,17, 4,22,32,18)( 5,26,10,14, 6,25, 9,13)( 7,27,11,16, 8,28,12,15)$ |
Malle's constant $a(G)$: $1/12$
Character table
34 x 34 character table
Regular extensions
Data not computed