About this representation
| Group
| U4(2)
|
| Group generators
| Standard generators
|
| Dimension
| 5
|
| Distinguishing letter
| a
|
| Ring
| Z[ω]
|
| Characteristic
| 0
|
| Description
| Basis 0.
|
| Irreducibility information
| Absolutely irreducible
|
| Indicator
| o
|
| Character
| χ2
|
| Character ring
| Z[ω]
|
| Schur index
| 1
|
| Notes
| 2-modular reduction is 4a.1 (uniserial).
Invariant Hermitian form has determinant 16.
|
| Contributed by
| Not recorded
|
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Checks applied
| Check |
Description |
Date |
Checked by |
Result |
| Files exist
| Check whether files exist (where stated).
| Jul 4, 2006
| certify.pl version 0.05
| Pass
|