The Karchmer-Raz-Wigderson Conjecture

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• Or Meir (Sheffield)
• Tuesday 04 November 2025, 14:00-15:00
• Computer Laboratory, William Gates Building, Room SS03.

If you have a question about this talk, please contact Tom Gur.

Proving super-logarithmic lower bounds on the depth of circuits is one of the main frontiers of circuit complexity. In 1991, Karchmer, Raz and Wigderson observed that we could resolve this question by proving the following conjecture: Given two boolean functions f,g, the depth complexity of their composition is about the sum of their individual depth complexities. While we cannot prove the conjecture yet, there has been some exciting progress toward such a proof, some of it in the last few years. In this talk, I will survey the known results and propose future directions for research on the KRW conjecture.

This talk is part of the Algorithms and Complexity Seminar series.

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• Algorithms and Complexity Seminar
• All Talks (aka the CURE list)
• Cambridge talks
• Computer Laboratory, William Gates Building, Room SS03
• Department of Computer Science and Technology talks and seminars
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