GROUP THEORY TUTORIAL

What's new in GTPack 1.2

GTPack version 1.2 was released June 26, 2020.

Calculating character tables and ireps in one go

GTPack 1.2 offers a new method to calculate irreducible representations of point groups using the induction method.

GTGetIrepscalculates character table and representation matrices of point groups
GTGetIreps is recommended to use if multiple irreducible representations are needed. If a single irreducible representation is needed, the existing command GTGetIrep can be applied.
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Finding invariant subgroups of specified index

GTGetInvSubGroupcalculates an invariant subgroup of specified index
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GTGetInvSubGroup can be used to construct the chief series of a solvable group:
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Further modifications

Besides the new modules presented above, some existing modules where extended. We added the induction method to the module GTGetIrep. Also, GTCharacterTable and GTGroupQ now allow for a numerical evaluation. GTAngularMomentumChars was revised and works more stable now.