The Polynomial Freiman-Ruzsa Theorem Leaves an Open Algorithmic Question
gautamcgoel · x · 2026-09-23
The quoted thread introduces the polynomial Freiman-Ruzsa (PFR) theorem: if a set A⊆𝔽₂ⁿ barely grows when added to itself, A must be close to a subspace.
The open question is algorithmic: can we efficiently find such a subspace? It opens a 10-part thread bridging additive combinatorics structure and algorithm design.
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