After hours of debugging some program code, I found out that right multiplication of a row subspace of K^n by an element x from GL(n,K) does *not* do what I expected!
sage: V = GF(2)^2 sage: v = V((1,0)) sage: x = GL(2,2)(matrix([[1,1],[0,1]])) sage: V.subspace([v*x]) == V.subspace([v])*x False It seems that right multiplication by x actually multiplies by the *transpose* of x? Is there any reason for that? That is even worse than the completely silly and error prone notation for permutation groups, where a *right action* is written from the left, so g(h(x)) isn't (g*h)(x). -- Peter Mueller -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
