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Magma V2.15-7 Patch Notes

Patch release for Magma V2.15-7. Updated areas: Aggregates, Function Fields, Group Algebras, Group Theory, Lattices and 1 more.

6 areas

Aggregates

  • Associative arrays have been fixed so that there is no longer a crash when they are incorrectly used as a universe.

Function Fields

  • Two problems with product representations have been fixed. The second one was introduced in the last patch release disabling product representations after a certain residue field image computation.

Group Algebras

  • A crash when asking for generators of a group algebra not in vector representation has been fixed. Generators for groups algebras are only available for the vector representation. A similar restriction applies to quotients of a group algebra, and the corresponding crash has also been fixed. Bugs reported by Markus Grassl.

Group Theory

  • Two copies of one conjugacy class (rather than two distinct classes) of maximal subgroups were being returned for the simple groups \(PSL(3, 2^t)\) for \(t\ge 3\). Reported by Joe Bohanon.

Lattices

Lie Algebras

  • A crash in subalgebra creation for Lie algebras with the partial representation has been fixed. Reported by D. Roozemond.

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