OpenAI reports a higher-codimension Riesz-transform criterion for rectifiability

For d≥4 and 2≤n≤d−2, an n-Ahlfors–David regular measure in Rᵈ with uniformly L²-bounded positive hard truncations of its n-dimensional Riesz transform is uniformly n-rectifiable.

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Understanding the problem

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For d≥4 and 2≤n≤d−2, an n-Ahlfors–David regular measure in Rᵈ with uniformly L²-bounded positive hard truncations of its n-dimensional Riesz transform is uniformly n-rectifiable.

Why it matters

If correct, settles the remaining higher-codimension range of the David–Semmes Riesz-transform criterion.

What counts as progress

Does L² boundedness of the Riesz transform force uniform rectifiability in higher codimension?

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