Lawson's Clifford torus uniqueness conjecture

Let TS3T\subset S^3 be an embedded minimal torus, and let TClT_{\mathrm{Cl}} denote the Clifford torus in S3S^3. Lawson's conjecture. There exists an isometry FF of S3S^3 such that

F(T)=TCl.F(T)=T_{\mathrm{Cl}}.

In other words, up to ambient isometries, the Clifford torus is the unique embedded minimal torus in S3S^3. The conjecture is a fundamental rigidity question for embedded minimal surfaces in the three-sphere; the supplied source does not establish whether it has been resolved.

Sources & referencesView supporting material

Primary source

Niang Chen, “Rigidity and Gap Phenomena in the Sphere–Ball Correspondence”, arXiv:2603.13061 (2026).

Additional references

3 papers in this index state this conjecture (2013–2026). The statement above is taken from the most recent of them; the others are arXiv:2004.03320, arXiv:1307.6938.

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