Space group representations and correlations

Space group irreps are labeled by
kvector star and corresponding
little group representation number. This program
calculates how does given irreducible represenation
of a supergroup (which is in general reducible for
the subgroups of that supergroup) splits into
irreducible constituents in the subgroup.
Input data :

Supergroup number as given in ITA.

Subgroup number as given in ITA.

Transformation that relates the conventional
bases of the sub and supergroups. The
transformation, in general, consists of a
linear part and an origin shift.

kvector data :
 Reciprocal lattice basis type, which may be
primitive (as in CracknellDaviesMillerLove
tables [1]) or dual to the conventional (ITA).
 kvector coordinates
relative to chosen basis as any three decimal
numbers or fractions.
 Label of the kvector (up
to three letters).

The program can also calculate the matrix that
performs the reduction of the representation.
If you wish to see it  put a mark at the
corresponding field.
[1] Cracknell, A. P., Davies, B. L., Miller, S. C.,
and Love, W. F. (1979). Kronecker Product Tables.
Vol. 1. General Introduction and Tables of Irreducible Representations of Space Groups. New York: IFI/Plenum.
If you are using this program in the preparation of a paper, please cite it in the following form:
M. I. Aroyo, A. Kirov, C. Capillas, J. M. PerezMato & H. Wondratschek."Bilbao Crystallographic Server II: Representations of crystallographic point groups and space groups". Acta Cryst. A62, 115128 (2006).


