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G = D38  order 76 = 22·19

Dihedral group

direct product, metacyclic, supersoluble, monomial, A-group, 2-hyperelementary

Aliases: D38, C2×D19, C38⋊C2, C19⋊C22, sometimes denoted D76 or Dih38 or Dih76, SmallGroup(76,3)

Series: Derived ►Chief ►Lower central ►Upper central

C1 — C19 — D38
C1 — C19 — D19 — D38
C19 — D38
C1 — C2

Generators and relations for D38
 G = < a,b | a38=b2=1, bab=a-1 >

19C2
19C2
19C22

Character table of D38

 class 12A2B2C19A19B19C19D19E19F19G19H19I38A38B38C38D38E38F38G38H38I
 size 111919222222222222222222
ρ11111111111111111111111    trivial
ρ21-11-1111111111-1-1-1-1-1-1-1-1-1    linear of order 2
ρ311-1-1111111111111111111    linear of order 2
ρ41-1-11111111111-1-1-1-1-1-1-1-1-1    linear of order 2
ρ52-200ζ1914+ζ195ζ1911+ζ198ζ1917+ζ192ζ1915+ζ194ζ1910+ζ199ζ1916+ζ193ζ1913+ζ196ζ1912+ζ197ζ1918+ζ19-ζ1918-ζ19-ζ1914-ζ195-ζ1911-ζ198-ζ1917-ζ192-ζ1915-ζ194-ζ1910-ζ199-ζ1916-ζ193-ζ1913-ζ196-ζ1912-ζ197    orthogonal faithful
ρ62200ζ1913+ζ196ζ1917+ζ192ζ1910+ζ199ζ1918+ζ19ζ1912+ζ197ζ1915+ζ194ζ1911+ζ198ζ1916+ζ193ζ1914+ζ195ζ1914+ζ195ζ1913+ζ196ζ1917+ζ192ζ1910+ζ199ζ1918+ζ19ζ1912+ζ197ζ1915+ζ194ζ1911+ζ198ζ1916+ζ193    orthogonal lifted from D19
ρ72200ζ1914+ζ195ζ1911+ζ198ζ1917+ζ192ζ1915+ζ194ζ1910+ζ199ζ1916+ζ193ζ1913+ζ196ζ1912+ζ197ζ1918+ζ19ζ1918+ζ19ζ1914+ζ195ζ1911+ζ198ζ1917+ζ192ζ1915+ζ194ζ1910+ζ199ζ1916+ζ193ζ1913+ζ196ζ1912+ζ197    orthogonal lifted from D19
ρ82200ζ1911+ζ198ζ1910+ζ199ζ1912+ζ197ζ1914+ζ195ζ1916+ζ193ζ1918+ζ19ζ1917+ζ192ζ1915+ζ194ζ1913+ζ196ζ1913+ζ196ζ1911+ζ198ζ1910+ζ199ζ1912+ζ197ζ1914+ζ195ζ1916+ζ193ζ1918+ζ19ζ1917+ζ192ζ1915+ζ194    orthogonal lifted from D19
ρ92-200ζ1913+ζ196ζ1917+ζ192ζ1910+ζ199ζ1918+ζ19ζ1912+ζ197ζ1915+ζ194ζ1911+ζ198ζ1916+ζ193ζ1914+ζ195-ζ1914-ζ195-ζ1913-ζ196-ζ1917-ζ192-ζ1910-ζ199-ζ1918-ζ19-ζ1912-ζ197-ζ1915-ζ194-ζ1911-ζ198-ζ1916-ζ193    orthogonal faithful
ρ102-200ζ1910+ζ199ζ1916+ζ193ζ1915+ζ194ζ1911+ζ198ζ1918+ζ19ζ1913+ζ196ζ1912+ζ197ζ1914+ζ195ζ1917+ζ192-ζ1917-ζ192-ζ1910-ζ199-ζ1916-ζ193-ζ1915-ζ194-ζ1911-ζ198-ζ1918-ζ19-ζ1913-ζ196-ζ1912-ζ197-ζ1914-ζ195    orthogonal faithful
ρ112200ζ1918+ζ19ζ1913+ζ196ζ1911+ζ198ζ1916+ζ193ζ1917+ζ192ζ1912+ζ197ζ1914+ζ195ζ1910+ζ199ζ1915+ζ194ζ1915+ζ194ζ1918+ζ19ζ1913+ζ196ζ1911+ζ198ζ1916+ζ193ζ1917+ζ192ζ1912+ζ197ζ1914+ζ195ζ1910+ζ199    orthogonal lifted from D19
ρ122200ζ1916+ζ193ζ1918+ζ19ζ1914+ζ195ζ1910+ζ199ζ1913+ζ196ζ1917+ζ192ζ1915+ζ194ζ1911+ζ198ζ1912+ζ197ζ1912+ζ197ζ1916+ζ193ζ1918+ζ19ζ1914+ζ195ζ1910+ζ199ζ1913+ζ196ζ1917+ζ192ζ1915+ζ194ζ1911+ζ198    orthogonal lifted from D19
ρ132-200ζ1911+ζ198ζ1910+ζ199ζ1912+ζ197ζ1914+ζ195ζ1916+ζ193ζ1918+ζ19ζ1917+ζ192ζ1915+ζ194ζ1913+ζ196-ζ1913-ζ196-ζ1911-ζ198-ζ1910-ζ199-ζ1912-ζ197-ζ1914-ζ195-ζ1916-ζ193-ζ1918-ζ19-ζ1917-ζ192-ζ1915-ζ194    orthogonal faithful
ρ142-200ζ1918+ζ19ζ1913+ζ196ζ1911+ζ198ζ1916+ζ193ζ1917+ζ192ζ1912+ζ197ζ1914+ζ195ζ1910+ζ199ζ1915+ζ194-ζ1915-ζ194-ζ1918-ζ19-ζ1913-ζ196-ζ1911-ζ198-ζ1916-ζ193-ζ1917-ζ192-ζ1912-ζ197-ζ1914-ζ195-ζ1910-ζ199    orthogonal faithful
ρ152-200ζ1912+ζ197ζ1915+ζ194ζ1918+ζ19ζ1917+ζ192ζ1914+ζ195ζ1911+ζ198ζ1916+ζ193ζ1913+ζ196ζ1910+ζ199-ζ1910-ζ199-ζ1912-ζ197-ζ1915-ζ194-ζ1918-ζ19-ζ1917-ζ192-ζ1914-ζ195-ζ1911-ζ198-ζ1916-ζ193-ζ1913-ζ196    orthogonal faithful
ρ162200ζ1915+ζ194ζ1914+ζ195ζ1913+ζ196ζ1912+ζ197ζ1911+ζ198ζ1910+ζ199ζ1918+ζ19ζ1917+ζ192ζ1916+ζ193ζ1916+ζ193ζ1915+ζ194ζ1914+ζ195ζ1913+ζ196ζ1912+ζ197ζ1911+ζ198ζ1910+ζ199ζ1918+ζ19ζ1917+ζ192    orthogonal lifted from D19
ρ172-200ζ1915+ζ194ζ1914+ζ195ζ1913+ζ196ζ1912+ζ197ζ1911+ζ198ζ1910+ζ199ζ1918+ζ19ζ1917+ζ192ζ1916+ζ193-ζ1916-ζ193-ζ1915-ζ194-ζ1914-ζ195-ζ1913-ζ196-ζ1912-ζ197-ζ1911-ζ198-ζ1910-ζ199-ζ1918-ζ19-ζ1917-ζ192    orthogonal faithful
ρ182-200ζ1917+ζ192ζ1912+ζ197ζ1916+ζ193ζ1913+ζ196ζ1915+ζ194ζ1914+ζ195ζ1910+ζ199ζ1918+ζ19ζ1911+ζ198-ζ1911-ζ198-ζ1917-ζ192-ζ1912-ζ197-ζ1916-ζ193-ζ1913-ζ196-ζ1915-ζ194-ζ1914-ζ195-ζ1910-ζ199-ζ1918-ζ19    orthogonal faithful
ρ192-200ζ1916+ζ193ζ1918+ζ19ζ1914+ζ195ζ1910+ζ199ζ1913+ζ196ζ1917+ζ192ζ1915+ζ194ζ1911+ζ198ζ1912+ζ197-ζ1912-ζ197-ζ1916-ζ193-ζ1918-ζ19-ζ1914-ζ195-ζ1910-ζ199-ζ1913-ζ196-ζ1917-ζ192-ζ1915-ζ194-ζ1911-ζ198    orthogonal faithful
ρ202200ζ1917+ζ192ζ1912+ζ197ζ1916+ζ193ζ1913+ζ196ζ1915+ζ194ζ1914+ζ195ζ1910+ζ199ζ1918+ζ19ζ1911+ζ198ζ1911+ζ198ζ1917+ζ192ζ1912+ζ197ζ1916+ζ193ζ1913+ζ196ζ1915+ζ194ζ1914+ζ195ζ1910+ζ199ζ1918+ζ19    orthogonal lifted from D19
ρ212200ζ1910+ζ199ζ1916+ζ193ζ1915+ζ194ζ1911+ζ198ζ1918+ζ19ζ1913+ζ196ζ1912+ζ197ζ1914+ζ195ζ1917+ζ192ζ1917+ζ192ζ1910+ζ199ζ1916+ζ193ζ1915+ζ194ζ1911+ζ198ζ1918+ζ19ζ1913+ζ196ζ1912+ζ197ζ1914+ζ195    orthogonal lifted from D19
ρ222200ζ1912+ζ197ζ1915+ζ194ζ1918+ζ19ζ1917+ζ192ζ1914+ζ195ζ1911+ζ198ζ1916+ζ193ζ1913+ζ196ζ1910+ζ199ζ1910+ζ199ζ1912+ζ197ζ1915+ζ194ζ1918+ζ19ζ1917+ζ192ζ1914+ζ195ζ1911+ζ198ζ1916+ζ193ζ1913+ζ196    orthogonal lifted from D19

Smallest permutation representation of D38
►On 38 points
Generators in S38
(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 33 34 35 36 37 38)
(1 38)(2 37)(3 36)(4 35)(5 34)(6 33)(7 32)(8 31)(9 30)(10 29)(11 28)(12 27)(13 26)(14 25)(15 24)(16 23)(17 22)(18 21)(19 20)
 
G:=sub<Sym(38)| (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38), (1,38)(2,37)(3,36)(4,35)(5,34)(6,33)(7,32)(8,31)(9,30)(10,29)(11,28)(12,27)(13,26)(14,25)(15,24)(16,23)(17,22)(18,21)(19,20)>;
 
G:=Group( (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38), (1,38)(2,37)(3,36)(4,35)(5,34)(6,33)(7,32)(8,31)(9,30)(10,29)(11,28)(12,27)(13,26)(14,25)(15,24)(16,23)(17,22)(18,21)(19,20) );
 
G=PermutationGroup([[(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38)], [(1,38),(2,37),(3,36),(4,35),(5,34),(6,33),(7,32),(8,31),(9,30),(10,29),(11,28),(12,27),(13,26),(14,25),(15,24),(16,23),(17,22),(18,21),(19,20)]])
 

D38 is a maximal subgroup of   D76  C19⋊D4
D38 is a maximal quotient of   Dic38  D76  C19⋊D4

Matrix representation of D38 ►in GL2(𝔽37) generated by

036
111
,
119
3626
G:=sub<GL(2,GF(37))| [0,1,36,11],[11,36,9,26] >;
 

D38 in GAP, Magma, Sage, TeX

D_{38}
 
% in TeX
 
G:=Group("D38");
 
// GroupNames label
 
G:=SmallGroup(76,3);
 
// by ID
 
G=gap.SmallGroup(76,3);
 
# by ID
 
G:=PCGroup([3,-2,-2,-19,650]);
 
// Polycyclic
 
G:=Group<a,b|a^38=b^2=1,b*a*b=a^-1>;
 
// generators/relations
 

Export

Subgroup lattice of D38 in TeX
Character table of D38 in TeX

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