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Furstenberg sets estimate in the plane

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arxiv 2308.08819 v3 pith:XDWJ7TUP submitted 2023-08-17 math.CA math.COmath.MG

classification math.CAmath.COmath.MG
keywords furstenbergresolveanalogueboundconjecturedimensiondiscretizedelekes
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abstract

We fully resolve the Furstenberg set conjecture in $\mathbb{R}^2$, that a $(s, t)$-Furstenberg set has Hausdorff dimension $\ge \min(s+t, \frac{3s+t}{2}, s+1)$. As a result, we obtain an analogue of Elekes' bound for the discretized sum-product problem and resolve an orthogonal projection question of Oberlin.

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Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Projections of self-affine sets onto lines

    math.CA 2026-07 accept novelty 8.0 of 10

    Under strong pinching and strong irreducibility of the linear parts, every line projection of a self-affine set attains the expected dimension; in the plane, strong irreducibility alone suffices.

  2. Algorithmic Information Bounds for Distances and Orthogonal Projections

    cs.CC 2025-09 conditional novelty 7.0 of 10

    A new proof technique shows distances and orthogonal projections retain at least half of a planar point's Kolmogorov complexity, improving pinned distance dimension bounds to 3/4 s and generalizing Bourgain's theorem.

  3. Furstenberg set theorem for transversal families of functions

    math.CA 2025-08 conditional novelty 7.0 of 10

    A sharp dimension bound for Furstenberg sets built from transversal families of graphs, with an application to Fourier decay of fractal measures on convex curves.

  4. Two-ends Furstenberg inequality for transversal families and applications to Fourier decay

    math.CA 2026-07 accept novelty 6.5 of 10

    A simplified two-ends Furstenberg inequality holds for transversal curve families and yields L6 Fourier decay R^{2-5s/2+ε} for s-Frostman measures on convex curves when s≤2/3.

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