Theorem · version 1

Sendov for all sufficiently large degree

Statement

There is a constant n₀ such that for every polynomial p of degree n ≥ n₀ whose zeros all satisfy |z| ≤ 1, each zero a has a critical point ζ with |ζ − a| ≤ 1.

Assumptions

  • Complex polynomials of degree at least n₀ with all zeros in the closed unit disk.
  • n₀ is not explicit.

Scope

Large degree only; the degrees between 9 and n₀ were left open until the 2026 proof.

Evidence

Source reports

Connections

In this problem · publication v6 · Selected context

Sendov’s conjecture →

Special case · Proved

A range of degrees proved before the full statement.

Relationship not independently reviewed. This concerns its use in this problem.

In this problem · publication v8

Sendov’s conjecture →

Special case · Proved

A range of degrees proved before the full statement.

Relationship not independently reviewed. This concerns its use in this problem.

Sources

Sendov’s conjecture for sufficiently high degree polynomials →

  • Abstract; Theorem 1.2 → · Original passage ↗
    Recorded wording

    Tao proves that there is an absolute constant n₀ such that Sendov’s conjecture holds for every degree n ≥ n₀; the compactness argument gives no explicit n₀.

    paraphrase · OpenMath supplies original paraphrases and links; no proof text is republished.

Terence Tao · Published · Publication date 2022

Acta Mathematica 229 (2022), 347–392, DOI 10.4310/acta.2022.v229.n2.a3 checked against Crossref; arXiv v2 pinned by content hash.

Revision & attribution

Source revision: arxiv-2012.04125v2. Observed Oct 21, 2026.

No AI contribution is asserted by this source record.

Source updated Aug 12, 2026.

History

Statement versions

Statement versions and problem publication versions are separate. A new publication can update context or sources while retaining the same statement.

Assessment history · 1

Assessments retained in these publication records. Earlier statement versions retain their own source histories.

Record details
Claim ID
claim-sendov-large-degree
Statement version
1
SHA-256
4645fb731506d26b9611f62fb3f4858410e42688bddd3e6a96b668a03340fe10

Publication records