Derandomizing BPL?

Derandomizing BPL? - Avi Wigderson

Avi Wigderson
School of Mathematics, Institute for Advanced Study
February 26, 2013

I will survey some of the basic approaches to derandomizing Probabilistic Logspace computations, including the "classical" Nisan, Impagliazzo-Nisan-Widgerson and Reingold-Raz generators, the Saks-Zhou algorithm and some more recent approaches. We'll see why each falls short of complete derandomization, BPL=L, hopefully motivating further work on this basic problem.