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Finite groups · Group

C5C_{5}Cyclic group of order 5

A cyclic group with 5 one-dimensional ordinary complex irreducibles.

Compare this group
Reference coverageFinite referenceFinite simpleAbelian
Definition

The cyclic group generated by a with a^5 = 1 and exact order 5.

Definition sources
Center
C5C_{5}
Source and assumptions

Reference properties

PropertyValueEvidence
Order55Sources
CenterC5C_{5}Sources
AbelianYesSources
SimpleYesSources
Ordinary complex irreducibles1, 1, 1, 1, 1Sources
GAP SmallGroups IDSmallGroup(5,1)Sources

Representation scope

The complete list of ordinary complex irrep dimensions is given above. Labels ρ1, ρ2, … follow the cited GroupNames character-table row order; they are local labels, not dimension-based identities. [sources]

Real, Complex and Quaternionic refer to Frobenius–Schur type (+1, 0, −1). The linked character table provides additional data; this entry does not supply matrices or a modular representation catalogue. [sources]

Complete ordinary complex irrep dimension and reality summary
Irrep labelComplex dimensionReality type
ρ11Real
ρ21Complex
ρ31Complex
ρ41Complex
ρ51Complex

Complete dimension and reality summary for ordinary complex irreps. This does not supply explicit matrices, every character value, or modular representations. Labels follow the conventions stated in this record.

Structure and conventions

For a generator a, χₖ(a) = exp(2πik/5); source row labels need not be ordered by k. [sources]

Names and aliases

Z5 · Z/5Z · ℤ5

Aliases identify the stated object under this record’s conventions. Type names and broader search terms are kept separate.

Related objects and maps

Claims and sources

Each assertion has a stable identifier within this record and a source locator or derivation. Cite the dataset edition when referring to a corrected or historical claim.

Definition

The cyclic group generated by a with a^5 = 1 and exact order 5.

group:c-5#definition
Order

5

group:c-5#order
Center

C5

group:c-5#center
Abelian

Yes

group:c-5#abelian
Simple

Yes

group:c-5#simple
Ordinary complex irreducibles

1, 1, 1, 1, 1

Assumptions: Characteristic zero · Finite-dimensional irreducibles over C · Dimensions listed with multiplicity

group:c-5#irreps
GAP SmallGroups ID

SmallGroup(5,1)

group:c-5#smallgroups-id
Representation scope

The complete list of ordinary complex irrep dimensions is given above. Labels ρ1, ρ2, … follow the cited GroupNames character-table row order; they are local labels, not dimension-based identities.

group:c-5#representations-1
Representation scope

Real, Complex and Quaternionic refer to Frobenius–Schur type (+1, 0, −1). The linked character table provides additional data; this entry does not supply matrices or a modular representation catalogue.

group:c-5#representations-2
Structure and conventions

For a generator a, χₖ(a) = exp(2πik/5); source row labels need not be ordered by k.

group:c-5#structure-1
Family

family:finite-cyclic

group:c-5#relation-1
Family

family:finite-prime-cyclic

group:c-5#relation-2