~/talk

On Semi-Algebraic Proofs and Algorithms

Talkat ITCS 2022 · 2022-01-31..02-03
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Shows that minimizing conical junta degree on the violations polynomial exactly matches Sherali‑Adams degree via a Hrubeš‑style factorization, uses slack matrices and non-negative rank plus Karchmer‑Wigderson inequalities to connect polytopes to circuits, and lifts conical‑junta lower bounds to separate monotone circuit power from MSEP-1. Constructs an iteration family with linear conical‑junta degree but easy resolution, gives feasible interpolation into monotone separation complexity, and flags the KMR 1/100N loss and weak vs strong MLP gate separation as open problems.

AI-written summary · about

  1. 0:00Introduction to complexity
  2. 1:33Slack matrices and polytopes
  3. 3:26Separating polytopes
  4. 5:29Measuring separation
  5. 7:57Semi-algebraic proof systems
  6. 10:28Shirali-Adams systems
  7. 13:09Results and lifting theorems
  8. 15:32Proof of classification
  9. 20:16Open problems and conclusion
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