[back] [prev] [next] [index] [root]
AlffDivisorClassRep
Find the class representation of a divisor class in given
generators.
Syntax:
L := AlffDivisorClassRep(D);
list |
L |
exponents |
alff divisor |
D |
|
See also: AlffClassGroupGens, AlffClassGroup, AlffInit, AlffOrders
Description:
Let F/k be a global function field and A_1, D_1, \dots, D_m
be a generating system as returned by AlffClassGroupGens(F).
Let d_i be the (finite) orders of [D_i].
This function returns a list consisting
of a, r_1, \dots, r_m \in Z
with 0 <= r_i < d_i such that [D] = a [A_1] +
r_1 [D_1] + \dots + r_m [D_m] holds.
Example:
<- back[back] [prev] [next] [index] [root]