Back to News
Patch Notes

Magma V2.14-17 Patch Notes

Patch release for Magma V2.14-17. Updated areas: Diophantine Equations, Elliptic Curves, Galois Groups, Matrix Groups, Modules and 4 more.

9 areas

Diophantine Equations

  • Fix an internal error in Solutions of a Thue-equation. Reported by M. Bennet.
  • A wrong bound (too small in certain cases) was used in UnitEquation resulting in internal errors.

Elliptic Curves

  • A crash in point multiplication has been fixed (and the computation sped up). Reported by D. Kern.

Galois Groups

  • Add support for trivial extensions in GaloisSplittingField which would fail on linear polynomials. Reported by T. Dokchitser.

Matrix Groups

  • A hang in matrix group order over fields of characteristic zero has been fixed. Reported by D. Yasaki.

Modules

  • In RowSpace check for availability of echelon algorithm.

Number Field Sieve

  • Add better input checking to the NFS function to avoid internal errors further down. Reported by M. Grassl.

Polynomial Rings

  • ExactQuotient has been extended to handle more general rings in recursive definitions. Reported by M. Stoll.
  • A crash in multiplication of very large polynomials has been fixed. Reported by D. Harvey.

System

  • Some problems with lock files for packages have been fixed. Reported by M. Stoll.

p-adic Rings and Fields

  • Use faster determinant algorithm.
  • Improve precision estimates in SplittingField. Fixes a problem reported by T. Dokchitser.
Back to News