Curves: Divisors and the Riemann-Roch Theorem

The following functions apply to irreducible curves in general.

• The computation and arithmetic of the function field of a curve
• Creation of divisors and their arithmetic
• Compute the divisor of a function on a curve and other constructors
• Determine whether a divisor is principal and if so find a function with the given divisor
• Compute the Riemann-Roch space of a divisor
• Compute the Divisor Class Group of a curve defined over a finite field