If you would like to attend S2AM, please register by sending an email to this address. While supplies last, the school will cover the cost of accommodation (including breakfast) at B&B Hotel Berlin Potsdamer Platz with each particpant sharing a room with one other participant. If sharing a room is undesirable, please contact us. Naturally participants can also organize their accomodation at their own expense. We advise participants to arrive on Sunday 9 October as the school begins early on Monday morning. Thus, we have reserved the hotel rooms from Sunday 9 October until Friday 14 October. When selecting participants, priority will be given to members of DFG Priority Project SPP 1489. Otherwise, all doctorial and postdoctorial students working in algebra, number theory, or geometry are very welcome to apply. All participants, including those not staying in the B&B Hotel Berlin Potsdamer Platz, should pay the registration fee by transfering €30 into this bank account.