Breakthrough Tracker record

The Friedlander–Iwaniec Gaussian-primes conjecture

For each n congruent to 0 or 4 modulo 6, the authors obtain an asymptotic count of primes of the form p² + nq² with p and q prime. The case n=4 settles the Friedlander–Iwaniec Gaussian-primes conjecture.

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Stable ID
math-friedlander-iwaniec-gaussian-primes-2024
Revision
math-friedlander-iwaniec-gaussian-primes-2024.v1
Field
Mathematics · Analytic number theory
Evidence
Tier 1 · Peer reviewed: Yes
Record state
Current · Accepted by Acta Mathematica; final publication pending
Last checked

AI role

No generative-AI role was disclosed.

Record details

Problem or result
Friedlander–Iwaniec Gaussian-primes conjecture
Authors
Ben Green and Mehtaab Sawhney
Institutions
University of Oxford and Columbia University at announcement
Result date
Preprint submitted October 5, 2024; accepted July 22, 2025

Why it matters

The proof overcomes a long-standing parity barrier for simultaneous prime-variable constraints in sieve theory.

Limits

The theorem applies to specified congruence classes of n. It is not a complete classification of all quadratic forms that take prime values. Version three corrected a partial-summation error in Section 8.3 and a minor inaccuracy in Section 8.7. Acta Mathematica lists the paper as accepted and awaiting publication; no final issue or DOI was located.

Sources

  1. Primary: Acta Mathematica, accepted papers awaiting publication
  2. Primary: Ben Green and Mehtaab Sawhney, Primes of the form p²+nq²
  3. Independent: Quanta, Mathematicians Uncover a New Way to Count Prime Numbers
  4. Independent: Mehtaab Sawhney publication list

Correction and revision history

  1. 2026-07-22 — Added with the n modulo 6 restriction and the special n=4 conjecture case stated explicitly.
  2. 2026-07-22 — Corrected the review status after the journal's accepted-paper list and the author's publication list showed that the paper was accepted by Acta Mathematica on July 22, 2025; final publication is still pending. Also disclosed the partial-summation error and minor inaccuracy corrected in arXiv version three.

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