p2gg | No. 8 | p2gg |
Generators selected (1); t(1, 0); t(0, 1); (2); (3)
General position
Multiplicity, Wyckoff letter, Site symmetry | Coordinates | |||||||
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I Maximal translationengleiche subgroups
[2] p1g1 (4, pg) | 1; 3 | 1/4, 0 | |
[2] p11g (4, pg) | 1; 4 | -b, a | 0, 1/4 |
[2] p211 (2, p2) | 1; 2 |
II Maximal klassengleiche subgroups
- Enlarged unit cell
[3] a' = 3a
|
[3] b' = 3b
|
- Series of maximal isomorphic subgroups
[p] a' = pa
p2gg (8) | <2 + (2u, 0); 3 + (p/2 - 1/2 + 2u, 0)> | pa, b | u, 0 |
p > 2; 0 ≤ u < p p conjugate subgroups for the prime p |
[p] b' = pb
p2gg (8) | <2 + (0, 2u); 3 + (0, p/2 - 1/2)> | a, pb | 0, u |
p > 2; 0 ≤ u < p p conjugate subgroups for the prime p |
I Minimal translationengleiche supergroups
[2] p4gm (12) |
II Minimal non-isomorphic klassengleiche supergroups
- Additional centring translations
[2] c2mm (9) |
- Decreased unit cell
[2] a' = 1/2 a p2mg (7); [2] b' = 1/2 b p2gm (7, p2mg) |