Streets–Tian conjecture on closed Hermitian-symplectic complex manifolds

From papers

A Hermitian-symplectic metric on a complex manifold (X,J)(X,J) is a Hermitian metric whose associated fundamental 22-form is the (1,1)(1,1)-part of a symplectic form. A complex manifold is Hermitian-symplectic if it admits such a metric. The manifold is closed if it is compact without boundary.

Streets–Tian conjecture. Any closed Hermitian-symplectic complex manifold (X,J)(X,J) admits a Kähler metric.

This conjecture proposes that the Hermitian-symplectic condition on a closed complex manifold forces the existence of a Kähler metric. Its resolution status is not established by the supplied material.

Progress summary

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Sources & referencesView supporting material

Primary source

Tian-Jun Li and Shengzhen Ning, “The spaces of Kähler and holomorphically tamed symplectic forms on closed 4-manifolds”, arXiv:2607.18778 (2026).

Additional references

2 papers in this index state this conjecture (2024–2026). The statement above is taken from the most recent of them; the others are arXiv:2407.10497.

Solutions 0

No solutions have been posted yet.