Previous Program Introduction Next Program

Program Order

Usage

Order 'file' [-o]
file: bravais_TYP containing a finite matrix group G

Description

Calculates the order of G via an Algorithm by Schreier and Sims.

Options

-O   : writes the group to stdout again, including the order and
       a factorisation of it.
-o   : write a factorisation and the order to stdout. This can
       be used to append it to a bravais_TYP.

Remarks

See also for Is_finite.

THE PROGRAM WILL TERMINATE IF AND ONLY IF THE GROUP IS FINITE!

Examples

  1. How do the Z-classes in the Q-class of a given group distribute into their Bravais flocks?
  2. Do given matrices generate a space group? If so, find its name and normal representation.
  3. Find the stabilizer of a sublattice in the Bravais group of the unit form F=I6.
  4. Calculate the "graph of inclusions" for a given geometric class.

Previous Program Introduction Next Program