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Patch Notes

Magma V2.10-14 Patch Notes

Patch release for Magma V2.10-14. Updated areas: Elliptic Curves, Graphs, Lie Algebras, Rings and Fields, System.

5 areas

Elliptic Curves

  • An error that sometimes caused a crash when calculating of the trace of Frobenius for elliptic curves over fields $GF(p^n)$, where $p^n$ is quite large, has been fixed. Reported by Frederik Vercauteren.

Graphs

  • A bug arising when deleting graphs and their vertices and edges has been fixed.

Lie Algebras

Rings and Fields

  • A bug in the factorization of ideals of number fields and function fields has been fixed.
  • Some errors that occurred when creating divisors for elements of quadratic fields have been fixed.
  • An oversight slowing the RayResidueRing map down has been corrected.
  • The pre-image map for RayResidueRings for cyclotomic fields was broken.
  • A memory management problem that arose when computing the Fourier expansion of the normalised Eisenstein function $E_{2k}(q)$ has been fixed. Reported by K Buzzard.

System

  • Some debugging checks were accidentally included in the Windows 2.10-13 patch release. These have been removed.
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