analysis / Arithmetic combinatorics

Sum-Difference Exponents for Boundedly Many Slopes

The arithmetic Kakeya conjecture asserts the infimum of sum-difference exponents is 1, which would imply the Kakeya conjecture in all dimensions. In the bounded-slope-count regime, Tao establishes that the exponents converge to 2 at a rate controlled by a new notion of rational complexity - mapping where the conjectured route cannot succeed.

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The arithmetic Kakeya conjecture asserts the infimum of sum-difference exponents is 1, which would imply the Kakeya conjecture in all dimensions. In the bounded-slope-count regime, Tao establishes that the exponents converge to 2 at a rate controlled by a new notion of rational complexity - mapping where the conjectured route cannot succeed.

Charts the bounded-slope regime of the arithmetic Kakeya program; the conjecture itself remains open.

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Sum-Difference Exponents for Boundedly Many Slopes — Mathematical Frontier Network