Group information
Description: | $C_{22}$ |
Order: | \(22\)\(\medspace = 2 \cdot 11 \) |
Exponent: | \(22\)\(\medspace = 2 \cdot 11 \) |
Automorphism group: | $C_{10}$, of order \(10\)\(\medspace = 2 \cdot 5 \) (generators) |
Outer automorphisms: | $C_{10}$, of order \(10\)\(\medspace = 2 \cdot 5 \) |
Composition factors: | $C_2$, $C_{11}$ |
Nilpotency class: | $1$ |
Derived length: | $1$ |
This group is cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary ($p = 2,11$), hyperelementary, metacyclic, metabelian, a Z-group, and an A-group).
Group statistics
Order | 1 | 2 | 11 | 22 | |
---|---|---|---|---|---|
Elements | 1 | 1 | 10 | 10 | 22 |
Conjugacy classes | 1 | 1 | 10 | 10 | 22 |
Divisions | 1 | 1 | 1 | 1 | 4 |
Autjugacy classes | 1 | 1 | 1 | 1 | 4 |
Dimension | 1 | 10 | |
---|---|---|---|
Irr. complex chars. | 22 | 0 | 22 |
Irr. rational chars. | 2 | 2 | 4 |
Minimal Presentations
Permutation degree: | $13$ |
Transitive degree: | $22$ |
Rank: | $1$ |
Inequivalent generators: | $1$ |
Minimal degrees of faithful linear representations
Over $\mathbb{C}$ | Over $\mathbb{R}$ | Over $\mathbb{Q}$ | |
---|---|---|---|
Irreducible | 1 | 2 | 10 |
Arbitrary | 1 | 2 | 10 |
Constructions
Presentation: | $\langle a \mid a^{22}=1 \rangle$ | |||||||||
Permutation group: | Degree $13$ $\langle(1,2), (3,13,12,11,10,9,8,7,6,5,4)\rangle$ | |||||||||
Matrix group: | $\left\langle \left(\begin{array}{rr} 1 & 1 \\ 0 & 1 \end{array}\right), \left(\begin{array}{rr} 10 & 0 \\ 0 & 10 \end{array}\right) \right\rangle \subseteq \GL_{2}(\F_{11})$ | |||||||||
Transitive group: | 22T1 | more information | ||||||||
Direct product: | $C_2$ $\, \times\, $ $C_{11}$ | |||||||||
Semidirect product: | not isomorphic to a non-trivial semidirect product | |||||||||
Trans. wreath product: | not isomorphic to a non-trivial transitive wreath product | |||||||||
Aut. group: | $\Aut(C_{23})$ | $\Aut(C_{46})$ |
Elements of the group are displayed as words in the generators from the presentation given above.
Homology
Primary decomposition: | $C_{2} \times C_{11}$ |
Schur multiplier: | $C_1$ |
Commutator length: | $0$ |
Subgroups
There are 4 subgroups, all normal, and all normal subgroups are characteristic.
Characteristic subgroups are shown in this color.
Special subgroups
Center: | $Z \simeq$ $C_{22}$ | $G/Z \simeq$ $C_1$ |
Commutator: | $G' \simeq$ $C_1$ | $G/G' \simeq$ $C_{22}$ |
Frattini: | $\Phi \simeq$ $C_1$ | $G/\Phi \simeq$ $C_{22}$ |
Fitting: | $\operatorname{Fit} \simeq$ $C_{22}$ | $G/\operatorname{Fit} \simeq$ $C_1$ |
Radical: | $R \simeq$ $C_{22}$ | $G/R \simeq$ $C_1$ |
Socle: | $\operatorname{soc} \simeq$ $C_{22}$ | $G/\operatorname{soc} \simeq$ $C_1$ |
2-Sylow subgroup: | $P_{ 2 } \simeq$ $C_2$ | |
11-Sylow subgroup: | $P_{ 11 } \simeq$ $C_{11}$ |
Subgroup diagram and profile
For the default diagram, subgroups are sorted vertically by the number of prime divisors (counted with multiplicity) in their orders.
To see subgroups sorted vertically by order instead, check this box.
To see subgroups sorted vertically by order instead, check this box.
Subgroup information
Click on a subgroup in the diagram to see information about it.
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Series
Derived series | $C_{22}$ | $\rhd$ | $C_1$ | ||
Chief series | $C_{22}$ | $\rhd$ | $C_{11}$ | $\rhd$ | $C_1$ |
Lower central series | $C_{22}$ | $\rhd$ | $C_1$ | ||
Upper central series | $C_1$ | $\lhd$ | $C_{22}$ |
Supergroups
This group is a maximal subgroup of 86 larger groups in the database.
This group is a maximal quotient of 86 larger groups in the database.
Character theory
Complex character table
See the $22 \times 22$ character table. Alternatively, you may search for characters of this group with desired properties.
Rational character table
1A | 2A | 11A | 22A | ||
Size | 1 | 1 | 10 | 10 | |
2 P | 1A | 1A | 11A | 11A | |
11 P | 1A | 2A | 11A | 22A | |
22.2.1a | |||||
22.2.1b | |||||
22.2.1c | |||||
22.2.1d |