Proof complexity of circuit lower bounds
- đ¤ Speaker: Pich, J (RWTH Aachen University)
- đ Date & Time: Thursday 29 March 2012, 16:00 - 16:30
- đ Venue: Seminar Room 1, Newton Institute
Abstract
Techniques that could resolve P vs. NP are considerably restricted by well-known barriers in computational complexity. There are several corresponding results in logic stating that certain fragments of arithmetic are not sufficiently strong to prove that P differs from NP or some similar conjectures. We investigate possible extensions of these barriers to stronger theories. Mainly, Razborov’s conjecture about hardness of Nisan-Wigderson generators for Extended Frege systems and natural proofs in proof systems admitting feasible disjunction property pointed out by Rudich.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Thursday 29 March 2012, 16:00-16:30