These are discussions on open problems. The idea is to exchange
pieces of information, no matter how small, that might contribute (hopefully)
towards a solution of a big problem. Every submission will be posted in
the corresponding discussion group (below is what we have right now). An
important part of it is on-line experimenting, where you can submit, for
example, a particular presentation of a group, and see what will happen.
Please send any questions or comments to the person responsible
for a particular discussion group.