Nested xy-pic diagrams

Question

Is it possible to include a xy-pic diagram as an entry of another xy-pic diagram? I have a map to a group of homomorphisms and I would like to print the homomorphism image. Is there some way to do this?

Answer 1

It's not possible like that, I.e. you can't use \xymatrix inside a \xymatrix.

But the macros \save and \restore may be of some help. See p.11 of the xyguide.