Classification conjecture for compact Kähler manifolds without analytic subvarieties

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Let XX be a compact Kähler manifold which does not contain any nontrivial analytic subvarieties.

Classification conjecture. The manifold XX should be either a complex torus or an irreducible hyperkähler manifold. In particular, KXK_X should be trivial, and the two cases should be distinguished by whether q(X)>0q(X)>0 or q(X)=0q(X)=0.

This is a more rigid form of the conjectural classification of simple compact Kähler manifolds. The source presents it as a conjectural picture, and no resolution of this statement is given.

References

Primary source

Pisya Vikash, “Classification of Smooth Minimal Kähler Fourfolds Without Effective Divisors and Surfaces”, arXiv:2607.04536 (2026).

Additional references

10 papers in this index state this conjecture (2007–2026). The statement above is taken from the most recent of them; the others are arXiv:2509.04200, arXiv:2403.16364, arXiv:2301.06750, arXiv:2105.05833, arXiv:1409.1346, arXiv:1407.1473, arXiv:1002.4321, arXiv:0807.3317, arXiv:0706.0790.

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