bnrinit

[Markus Endres <me@mendres.org>]

hallo,

I have a question concerning bnrinit.

for example I use

? bnf = bnfinit(x^4 + 2*x^3 + 25*x^2 + 24*x + 111);

? ideal = [3,0,1,0;0,3,0,1;0,0,1,0;0,0,0,1];

? rcgp = bnrinit(bnf,ideal,1);

than I get

? rcgp.clgp
%1 = [1, [], []]
? 

now, what's the meaning of the empty vectors in rcgp.clgp. I know the
structure is like [cardinality, vector of cyclic components,
generators]. but I would expect something like [1, [0], [0]].

Maybe someone can me explain the sense of the empty vectors.

thanx in advance

cheers

markus