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Program Tr_bravais

Usage

Tr_bravais 'file' [-n] [-i]
file: bravais_TYP of the finite unimodular group G.

Description

Calculates the transposed group of G.

Options

-n    : The space of invariant forms of the transposed group is not calculated.
-i    : Invert the generators of G, G->normal, G->cen to give an isomorphism.

Remarks

See also for Tr.

Examples

  1. Find all space groups with a given point group and decide for which superlattices each extension splits.
  2. Find the dual pairs of Bravais groups in family 1;1;1;1

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