The logarithmic Dolbeault equation conjecture for simple normal crossing divisors

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Let XX be a compact Kähler manifold and let D=∑i=1rDiD=\sum_{i=1}^r D_i be a simple normal crossing divisor in XX. Let LL be a holomorphic bundle over XX such that

LN=OX(∑i=1raiDi),0≤ai≤N,L^N=\mathcal{O}_X\left(\sum_{i=1}^r a_iD_i\right),\qquad 0\leq a_i\leq N,

where ai∈Za_i\in\mathbb{Z}. The logarithmic Dolbeault equation conjecture. For any α∈A0,q(X,ΩXp(log⁡D)⊗L−1)\alpha\in A^{0,q}(X,\Omega^p_X(\log D)\otimes L^{-1}) satisfying ∂ˉ∂α=0\bar\partial\partial\alpha=0, there exists

x∈A0,q−1(X,ΩXp+1(log⁡D)⊗L−1)x\in A^{0,q-1}(X,\Omega^{p+1}_X(\log D)\otimes L^{-1})

such that

∂ˉx=∂α.\bar\partial x=\partial\alpha.

Such a general logarithmic ∂ˉ\bar\partial-equation would extend known E1E_1-degeneration and unobstructed-deformation results from smooth projective varieties to compact Kähler manifolds.

References

Primary source

Xueyuan Wan, “A logarithmic -equation on a compact Kähler manifold associated to a smooth divisor”, arXiv:1805.11920 (2025).

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