Jacobians of Hyperelliptic Curves

New Features:

• TwoSelmerGroup has been added.

• Fast p-adic point-counting methods (Mestre/Lercier/Lubicz in characteristic 2 and Kedlaya in odd characteristic) have been added. These apply to both a hyperelliptic curve C and its Jacobian J over finite fields of small characteristic. Each of the four functions #C, #J, EulerFactor(J), ZetaFunction(C) will use these methods when appropriate.

• Analytic Jacobians can now be created. Their big and small period matrices can be accessed as well as a selection of other invariants. There are several constructions for maps between Jacobians. Voronoi cells can be computed.