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BIRS Workshop Lecture Videos

Dmitry Sokolov: (Semi)Algebraic Proofs over $\{\pm 1\}$ Variables Sokolov, Dmitry

Description

One of the major open problem in proof complexity is to prove lower bounds on $AC_0[p]$-Frege proof systems. As a step toward this goal Impagliazzo, Mouli and Pitassi in a recent paper suggested to prove lower bounds on the size for Polynomial Calculus over the $\{\pm 1\}$ basis. In this talk we show a technique for proving such lower bounds and moreover we also give lower bounds on the size for Sum-of-Squares over the $\{\pm 1\}$ basis. We show lower bounds on random $\Delta$-CNF formulas and formulas composed with a gadget. As a byproduct, we establish a separation between Polynomial Calculus and Sum-of-Squares over the $\{\pm 1\}$ basis by proving a lower bound on the Pigeonhole Principle.

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