Hello :) Before I get to my topic I want to adress that I am new to this website and wish to apologize if my thread is incorrectly placed. I am interested in black holes and lately I have been trying to find some math which lays the basis for a black hole firewall. Sadly I haven't been able to find what I am looking for and I was wondering if somebody could tell me where to find this. Again, I am pretty sure my thread is incorrectly placed and I am really sorry about that. Thanks for the help and I wish you a wonderful day.