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Magma V2.27-8 Patch Notes

Patch release for Magma V2.27-8. Updated areas: Algebraic Curves, Algebraic Number Fields, Coding Theory, Elliptic Curves, Finite Fields and 4 more.

9 areas

Algebraic Curves

  • A bug in LPolynomial(C) applied to a certain class of curves has been fixed. Reported by A. Sutherland.

Algebraic Number Fields

  • An oversight in which a computed maximal order was not stored on the field has been fixed, resulting in no recomputation of known orders. Reported by L. Combes.

  • Testing some not yet known to be principal integral ideals of non maximal orders for principality has been fixed. Reported by M. Kirschmer.

Coding Theory

  • A crash involving the deletion of codes after SymplecticDual had been called has been fixed. Reported by M. Grassl.

Elliptic Curves

  • A crash in MordellWeilGroup for an elliptic curve defined over a number field has been fixed. Reported by S. Schiavone.

Finite Fields

  • A slowdown arising from the creation of a very large number of finite fields with different characteristics has been fixed.

Groebner Bases

  • A bug in Groebner basis computation with a large number of variables in the graded case has been fixed. Reported by W. Wemyss.

  • A crash in the parallel F4 algorithm with the sparse monomial representation (selected when there is a large number of variables) has been fixed. Reported by M. Grassl.

Groups

Hyperelliptic Curves

  • A bug which caused ReducedModel to hang on some hyperelliptic curves has been fixed. Reported by E. Costa.

Rings

  • &* when applied to polynomials over a non commutative ring has been fixed. Reported by P. Koprowski.

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