Description of fields in records in the data.g file:
Say that each record describes a crystallographic (space) group S with a holonomy (point) group P.
| Field | Description |
|---|---|
| dim | dimension of the group S |
| hmod | ranks of mod 2 (co)homology groups of the group S |
| idpg | GAP id of the holonomy group P of S (assume P in GL(dim,Z)) |
| name | CARAT name of S |
| orientable | is S orientable |
| qname | CARAT name of the conjugacy class of P in GL(dim,Q) |
| s2name | CARAT name of a maximal subgroup of G with 2-group holonomy |
| sdpg | GAP structure description of P |
| spin | does S have a spin structure |
| zname | CARAT name of the conjugacy class of P in GL(dim,Z) |