You are welcome to collaborate on problem sets, but your write-ups must be your own, and your problem sets must list your collaborators. Please hand in a physical copy of your solutions, including any physical foldings requested. Any loose pieces of paper should be labeled with your name, just in case they slide out.
Deadlines refer to the beginning of class that day. If there is no class on the day of the deadline, turn in your problem set into Erik's office, 32-G680, sliding it under his door if no one is there.