> < ^ From:

> ^ Subject:

Dear Forum,

I've been using GAP to create incidence matrices of combinatorial

designs. (An incidence matrix M has entries which are 0 and 1 and so the

matrix may be viewed as existing over *any* field.) I would now like to

examine the codes generated by these matrices, that is, I would like to

examine the row space of the matrix M over a field of prime order. I'd

like to find bases for the row space.

How do I do this? A first step, I assume, is to row reduce the

matrix M mod p, but I can't seem to find the right commands.

Thanks in advance,

Ken

Ken W. Smith, Professor of Mathematics, Central Michigan University

> < [top]