TU-Berlin → Inst. f. Mathematik → Algebra und Zahlentheorie → KASH → Documentation → Reference Manual
 KASH3 Reference Manual
Documentation
IntroductionReference ManualIndex
search    

Function

SUnitGroup ( seq(elt-ids^int/ord^num) S ) -> grp^abl, map()

Optional Arguments

Resultselt-ord^rat1 <= Results <= 2
Rawelt-alg^boo

Description

The group of s-units of the prime ideals given in the sequence S or the factorization of I.

Examples

x_o := MaximalOrder(X^2 -2); x_a := 12*x_o; x_f := Factorization(x_a); # by factorizing x_a we get two prime ideals: x_p1 := x_f[1][1]; x_p2 := x_f[2][1]; SUnitGroup([x_p1, x_p2]);
Built: Mon Nov 14 21:12:39 UTC 2005 on mack
The KANT Group