t_SCHUR_SYMCHAR
synopsis: INT t_SCHUR_SYMCHAR(OP sp, res)
description:
the input is a SCHUR object sp, this is a sum of
partitions with coefficent, this is interpreted as a decomposition
of a charcter into irreducible ones. This sum of irreducible
characters is computed, and will be the output, the SYMCHAR
object res. If the partitions are of different weight, you
will get an error. If the input is not a SCHUR object, the routine
copies sp to res.
More or less this routines computes the Frobenius isometry.
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