Lecture 25

Assignment 3 has been posted on T-Square. Due on Monday, October 26 at 5 PM.

Valiant-Vazirani to show NP in BPP^⊕P

⊕P = ⊕P^⊕P (Papadimitriou-Zachos)

The first part of Toda's theorem that the polynomial-time hierarchy is in BPP^⊕P