Diff for "days53/projects"

Coding sprint projects for Sage Days 53.

• Try out Sage-Git (everybody)
• Toric fibrations (Jan, Andrey)

  • Trac #14880 : p-adic gamma function

  • Linear algebra mod n -- pari does this. Write a wrapper? (Kiran)
  • Kloosterman's paper on deformations of diagonal hypersurfaces -- what are strong, weak equivalence? (Kiran, Adriana, Ursula)
  • Create a python object that enumerates the set of points on a toric variety over a finite field (Ursula has code to do this) (David) (useful for checking if these points are on a hypersurface or a complete intersection)
  • Hypersurfaces - check smoothness, nondegeneracy (where does this fail in families?) (Kiran, Adriana, Ursula, Wouter)

  • Toric elliptic curves (first, see what's done in Trac #13084 to figure out what is left to do)

  • Porting Wouter's Magma code for lattice width, other methods (Wouter, Jen)

• Zeta functions of hyperelliptic curves -- point-counting method in Sage to call David's code, see Trac #15148 (Jan)

• Make quiver algebras and quiver representations work again (Simon)

  • See Trac #12630. The ticket was providing quivers with composition of paths, quiver algebras and the like, but the patch recently broke because of a change in the expected arguments of DiGraph.__init__ in Trac #14806.

• Fix memleak related with quadratic number fields (Jean-Pierre, Simon)

  • See Trac #14711. Quadratic number fields come with an embedding into the complex field. The embedding is stored by strong reference in an attribute of the codomain of the embedding. If the codomain is "immortal" (which is the case for the complex field), then the domain of the embedding becomes immortal, too. Hence, currently, quadratic number fields will stay in memory forever.